APA (7th ed.) Citation

Kaufman, P. E., Koehler, P. G., & Butler, J. F. External Parasites of Poultry. The University of Florida George A. Smathers Libraries.

Chicago Style (17th ed.) Citation

Kaufman, Phillip E., Philip G. Koehler, and Jerry F. Butler. External Parasites of Poultry. The University of Florida George A. Smathers Libraries.

MLA (9th ed.) Citation

Kaufman, Phillip E., et al. External Parasites of Poultry. The University of Florida George A. Smathers Libraries.

Warning: These citations may not always be 100% accurate.