APA (7th ed.) Citation

Willett, G. (1943). The birds of the urban districts of Los Angeles County no. 1. Los Angeles County Museum.

Chicago Style (17th ed.) Citation

Willett, George. The Birds of the Urban Districts of Los Angeles County No. 1. Los Angeles: Los Angeles County Museum, 1943.

MLA (9th ed.) Citation

Willett, George. The Birds of the Urban Districts of Los Angeles County No. 1. Los Angeles County Museum, 1943.