Dyfyniad APA

George, K. E., Rani Joseph, & Ushamani. (2001). Engineering chemistry. Educational Publishers and Distributors.

Dyfyniad Arddull Chicago

George, K E., Rani Joseph, and Ushamani. Engineering Chemistry. Ernakulam: Educational Publishers and Distributors, 2001.

Dyfyniad MLA

George, K E., et al. Engineering Chemistry. Educational Publishers and Distributors, 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.