APA (7th ed.) Citation

Riggs, N. C., & Frocht, M. M. (1938). Strength of materials: A first course. Ronald Press.

Chicago Style (17th ed.) Citation

Riggs, Norman C., and Max Mark Frocht. Strength of Materials: A First Course. New York: Ronald Press, 1938.

MLA (9th ed.) Citation

Riggs, Norman C., and Max Mark Frocht. Strength of Materials: A First Course. Ronald Press, 1938.