Roberts, John W. (John William) and Pierce, Leslie.
Farmers' bulletin (United States. Dept. of Agriculture) ; no. 1479
Apple blotch; Apples; Diseases and pests; life cycle (organisms); apples; orchards; fruit trees; plant diseases and disorders; fungal diseases of plants; leaf blotch; spraying; varietal resistance; sulfur; copper sulfate
Farmers' bulletin (United States. Dept. of Agriculture) ; no. 263
Irrigation; irrigation; irrigated farming; water supply; irrigation canals; topography; slope; hydraulic structures; gates; site preparation; irrigation systems; alfalfa; grain crops; potatoes; fruit trees; small fruits; vegetables; water management; indigenous species