Dyfyniad APA

Sethi S & Bright P S. (2010). Objective Geography. Bright.

Dyfyniad Arddull Chicago

Sethi S and Bright P S. Objective Geography. New Delhi: Bright, 2010.

Dyfyniad MLA

Sethi S and Bright P S. Objective Geography. Bright, 2010.

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