APA (7th ed.) Citation

Schwartz, S. H., Spring, B., & Spring, I. (1976). Cascade companion. Pacific Search Books.

Chicago Style (17th ed.) Citation

Schwartz, Susan H., Bob Spring, and Ira Spring. Cascade Companion. Seattle: Pacific Search Books, 1976.

MLA (8th ed.) Citation

Schwartz, Susan H., et al. Cascade Companion. Pacific Search Books, 1976.

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