एपीए उद्धरण

Murphy, B., & Brendan Murphy; Damian Nance. (1999). Earth science today. Pacific Grove, Calif: Brooks/Cole.

शिकागो स्टाइल उद्धरण

Murphy, Brendan, और Brendan Murphy; Damian Nance. Earth Science Today. Pacific Grove, Calif: Brooks/Cole, 1999.

एमएलए उद्धरण

Murphy, Brendan, और Brendan Murphy; Damian Nance. Earth Science Today. Pacific Grove, Calif: Brooks/Cole, 1999.