एपीए उद्धरण

Ledin, G. (1980). A structured approach to essential basic. San Francisco, Calif: Boyd & Fraser Pub. Co.

शिकागो स्टाइल उद्धरण

Ledin, George. A Structured Approach to Essential Basic. San Francisco, Calif: Boyd & Fraser Pub. Co, 1980.

एमएलए उद्धरण

Ledin, George. A Structured Approach to Essential Basic. San Francisco, Calif: Boyd & Fraser Pub. Co, 1980.