एपीए उद्धरण

Elgerd, O. I. (1967). Controls systems theory. McGraw-Hill.

शिकागो स्टाइल उद्धरण

Elgerd, Olle I. Controls Systems Theory. New York: McGraw-Hill, 1967.

एमएलए उद्धरण

Elgerd, Olle I. Controls Systems Theory. McGraw-Hill, 1967.