Παραπομπή σε μορφή APA (7η εκδ.)

Varghese, P. C. (2012). Engineering geology for civil engineers (Eastern Economy Edition.). PHI Learning.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Varghese, P. C. Engineering Geology for Civil Engineers. Eastern Economy Edition. New Delhi: PHI Learning, 2012.

Παραπομπή σε μορφή MLA (8th εκδ.)

Varghese, P. C. Engineering Geology for Civil Engineers. Eastern Economy Edition. PHI Learning, 2012.