Dyfyniad APA
Gere, J. M., & Goodno, B. J. (2009). Mechanics of materials (7th ed.). Cengage Learning.
Dyfyniad Arddull Chicago
Gere, James M., and Barry J. Goodno. Mechanics of Materials. 7th ed. Toronto, ON ; [Clifton Park, NY]: Cengage Learning, 2009.
Dyfyniad MLA
Gere, James M., and Barry J. Goodno. Mechanics of Materials. 7th ed. Cengage Learning, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.