United States. Department of Agriculture. Office of the Secretary & Willard, H. F. (1927). Parasites of pink bollworm in Hawaii. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and H. F. Willard. Parasites of Pink Bollworm in Hawaii. Washington: [publisher not identified], 1927.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and H. F. Willard. Parasites of Pink Bollworm in Hawaii. [publisher not identified], 1927.
Warning: These citations may not always be 100% accurate.