Dyfyniad APA
Gere, J. M., & Goodno , B. J. (2009). Strength of materials. Cengage Learning.
Dyfyniad Arddull Chicago
Gere, James M., and Barry J. Goodno. Strength of Materials. New Delhi: Cengage Learning, 2009.
Dyfyniad MLA
Gere, James M., and Barry J. Goodno. Strength of Materials. Cengage Learning, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.