United States. Bureau of Entomology and Plant Quarantine. (1936). Soil-washing apparatus and methods used in counting wireworm eggs. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Soil-washing Apparatus and Methods Used in Counting Wireworm Eggs. [Washington]: [s.n.], 1936.
MLA (9th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Soil-washing Apparatus and Methods Used in Counting Wireworm Eggs. [s.n.], 1936.
Warning: These citations may not always be 100% accurate.