एपीए उद्धरण

Olson, J. F. (1997). Grammar essentials. New York: Learning Express.

शिकागो स्टाइल उद्धरण

Olson, Judith F. Grammar Essentials. New York: Learning Express, 1997.

एमएलए उद्धरण

Olson, Judith F. Grammar Essentials. New York: Learning Express, 1997.