एपीए उद्धरण

Thomas, R. (1971). Exercises in Graphic Communication. ELBS & Nelson.

शिकागो स्टाइल उद्धरण

Thomas, R. Exercises in Graphic Communication. Middlesex: ELBS & Nelson, 1971.

एमएलए उद्धरण

Thomas, R. Exercises in Graphic Communication. ELBS & Nelson, 1971.