एपीए उद्धरण

Van Til, W. (1981). Writing for professional publication. Boston: Allyn and Bacon.

शिकागो स्टाइल उद्धरण

Van Til, William. Writing for Professional Publication. Boston: Allyn and Bacon, 1981.

एमएलए उद्धरण

Van Til, William. Writing for Professional Publication. Boston: Allyn and Bacon, 1981.