एपीए उद्धरण

Kesavulu, N. (1993). Textbook of engineering geology (1st. ed.). Mcmillan.

शिकागो स्टाइल उद्धरण

Kesavulu, N.Chenna. Textbook of Engineering Geology. 1st. ed. Delhi: Mcmillan, 1993.

एमएलए उद्धरण

Kesavulu, N.Chenna. Textbook of Engineering Geology. 1st. ed. Mcmillan, 1993.