Pytel, A., & Singer, F. L. (1987). Strength of materials (4th ed.). Harper & Row.
Citación estilo ChicagoPytel, Andrew, and Ferdinand Leon Singer. Strength of Materials. 4th ed. New York: Harper & Row, 1987.
Cita MLAPytel, Andrew, and Ferdinand Leon Singer. Strength of Materials. 4th ed. Harper & Row, 1987.
Warning: These citations may not always be 100% accurate.