United States. Bureau of Entomology. (1908). Woolly aphis of apple (Schizoneura lanigera Hausmann.). [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology. Woolly Aphis of Apple (Schizoneura Lanigera Hausmann.). [Washington]: [publisher not identified], 1908.
MLA (9th ed.) CitationUnited States. Bureau of Entomology. Woolly Aphis of Apple (Schizoneura Lanigera Hausmann.). [publisher not identified], 1908.
Warning: These citations may not always be 100% accurate.