APA (7th ed.) Citation

Andres, P., & Andres, B. (1991). Walla Walla--her historic homes. P. Andres.

Chicago Style (17th ed.) Citation

Andres, Penny, and Bob Andres. Walla Walla--her Historic Homes. [Walla Walla, Wash.]: P. Andres, 1991.

MLA (8th ed.) Citation

Andres, Penny, and Bob Andres. Walla Walla--her Historic Homes. P. Andres, 1991.

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