Dyfyniad APA
Khan, A., & Islam, S. (2013). Engineering chemistry. Khanna Book Pub. Co.
Dyfyniad Arddull Chicago
Khan, Ayesha, and Saiful Islam. Engineering Chemistry. New Delhi: Khanna Book Pub. Co, 2013.
Dyfyniad MLA
Khan, Ayesha, and Saiful Islam. Engineering Chemistry. Khanna Book Pub. Co, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.