United States. Department of Agriculture. Office of the Secretary & Newcomer, E. J. (1931). Experiments for control of San Jose scale with lubricating-oil emulsions in Pacific Northwest. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and E. J. Newcomer. Experiments for Control of San Jose Scale with Lubricating-oil Emulsions in Pacific Northwest. Washington: U.S. GPO, 1931.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and E. J. Newcomer. Experiments for Control of San Jose Scale with Lubricating-oil Emulsions in Pacific Northwest. U.S. GPO, 1931.
Warning: These citations may not always be 100% accurate.