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1. A digest of the literature of derris (deguelia) species used as insecticides, 1747-1931

Author:
Roark, R. C. (Ruric Creegan)
Subject:
Dalbergia Bibliography , Insecticidal plants Bibliography , Insecticides , bibliographies , pesticides , botanical pesticides , biopesticides , botanical insecticides , pesticidal plants , rotenoids , rotenone
Physical description:
86 p. ; 23 cm.
Additional Author(s):
Roark, R. C. (Ruric Creegan)
Collection:
Organic Roots Collection
Series:
Miscellaneous publication

2. A digest of the literature of derris (deguelia) species used as insecticides, 1747-1931

Author:
Roark, R. C. (Ruric Creegan) , USDA
Subject:
bibliographies , pesticides , botanical pesticides , biopesticides , botanical insecticides , pesticidal plants , rotenoids , rotenone , Dalbergia -- Bibliography. , Insecticidal plants -- Bibliography. , Insecticides.
Physical description:
86 p.
Collection:
Organic Roots Collection
Series:
Miscellaneous publication
Part Of:
Miscellaneous publication

3. Bibliography on soil erosion and soil and water conservation

Author:
Gaines, Stanley H. (Stanley Harry), 1904 , Bloom, Marion. , Carter, James F. (James Frederick), 1904 , Vincent, Francesca. , USDA
Subject:
bibliographies , soil conservation , erosion control , water conservation , water management , agricultural land , land management , conservation practices , agricultural history , soil erosion , Soil conservation -- Bibliography. , Soil erosion -- Bibliography. , Water conservation -- Bibliography.
Physical description:
v, 651 p.
Collection:
Organic Roots Collection
Series:
Miscellaneous publication
Part Of:
Miscellaneous publication

4. Bibliography on soil erosion and soil and water conservation

Author:
Gaines, Stanley H. (Stanley Harry) , 1904- , Bloom, Marion. , Carter, James F. (James Frederick) , 1904- , Vincent, Francesca.
Subject:
Soil conservation Bibliography , Soil erosion Bibliography , Water conservation Bibliography , bibliographies , soil conservation , erosion control , water conservation , water management , agricultural land , land management , conservation practices , agricultural history , soil erosion
Physical description:
v, 651 p. ; 23 cm.
Additional Author(s):
Gaines, Stanley H. (Stanley Harry) , 1904-Bloom, Marion.Carter, James F. (James Frederick) , 1904-Vincent, Francesca.
Collection:
Organic Roots Collection
Series:
Miscellaneous publication

5. Index to publications of the United States Department of agriculture, 1936-1940

Description:
Also available on the Internet.
Author:
United States Dept. of Agriculture. Division of Publications. , Bradley, Mary Alice 1895- , United States. Dept. of Agriculture
Subject:
 , Bibliography , Agriculture , Bibliography , Agriculture , United States , Bibliography , USDA , bibliographies
Collection:
Organic Roots Collection