Cita APA

Mackenzie, R. D., & Findlay, G. M. (1937). Variations in Fowl-pest Virus.

Chicago Style Citation

Mackenzie, R. D., i G. M. Findlay. Variations in Fowl-pest Virus. 1937.

Cita MLA

Mackenzie, R. D., i G. M. Findlay. Variations in Fowl-pest Virus. 1937.