APA (7th ed.) Citation

Spencer, P. R., Fritschler, L. D., Dugger, E., & Houy, H. H. (1942). Exploring new trails. Lyons and Carnahan.

Chicago Style (17th ed.) Citation

Spencer, Paul R., Lois Duffin Fritschler, Ethel Dugger, and Henrietta H. Houy. Exploring New Trails. Chicago ; Dallas ; Los Angeles ; Atlanta ; New York: Lyons and Carnahan, 1942.

MLA (8th ed.) Citation

Spencer, Paul R., et al. Exploring New Trails. Lyons and Carnahan, 1942.