एपीए उद्धरण

Ketchum, D. J. (1965). Pulse and switching circuits. New York: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Ketchum, Donald J. Pulse and Switching Circuits. New York: McGraw-Hill, 1965.

एमएलए उद्धरण

Ketchum, Donald J. Pulse and Switching Circuits. New York: McGraw-Hill, 1965.