Dyfyniad APA
Hibbeler, R. C. (2005). Mechanics of materials (6th ed.). Pearson Prentice Hall.
Dyfyniad Arddull Chicago
Hibbeler, R. C. Mechanics of Materials. 6th ed. Upper Saddle River, N.J. : New Delhi: Pearson Prentice Hall, 2005.
Dyfyniad MLA
Hibbeler, R. C. Mechanics of Materials. 6th ed. Pearson Prentice Hall, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.