APA (7th ed.) Citation

Yost, G. (1928). Exercises for change of position. Volkwein Bros..

Chicago Style (17th ed.) Citation

Yost, Gaylord. Exercises for Change of Position. Pittsburgh, Pa.: Volkwein Bros., 1928.

MLA (9th ed.) Citation

Yost, Gaylord. Exercises for Change of Position. Volkwein Bros., 1928.