एपीए उद्धरण

Thuesen, H. G. (1981). Engineering economy. Prentice-Hall of India.

शिकागो स्टाइल उद्धरण

Thuesen, H G. Engineering Economy. New Delhi: Prentice-Hall of India, 1981.

एमएलए उद्धरण

Thuesen, H G. Engineering Economy. Prentice-Hall of India, 1981.