Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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