एपीए उद्धरण

Cohen, D., & David Cohen; David Sklar; Ross Rueger. (2005). Precalculus: A problems-oriented approach. Belmont, CA: Thomson-Brooks/Cole.

शिकागो स्टाइल उद्धरण

Cohen, David, और David Cohen; David Sklar; Ross Rueger. Precalculus: A Problems-oriented Approach. Belmont, CA: Thomson-Brooks/Cole, 2005.

एमएलए उद्धरण

Cohen, David, और David Cohen; David Sklar; Ross Rueger. Precalculus: A Problems-oriented Approach. Belmont, CA: Thomson-Brooks/Cole, 2005.