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A Study of Hybrid Vigor in a Cross Between Poland China and Duroc Jersey Swine


Author:
Roberts, E. and Carroll, W.E.
Source:
USDA
Year:
1939
Format:
p. 847-854.
Language:
English
Collection:
USDA publications
Permanent URL:
http://handle.nal.usda.gov/10113/IND43969270