APA (7th ed.) Citation

Rob, G. I. (2013). A textbook of geology. Random Exports.

Chicago Style (17th ed.) Citation

Rob, Gregg I. A Textbook of Geology. New Delhi: Random Exports, 2013.

MLA (9th ed.) Citation

Rob, Gregg I. A Textbook of Geology. Random Exports, 2013.

Warning: These citations may not always be 100% accurate.