Dyfyniad APA

Barnett, R. A., & Ziegler, M. R. (2008). Precalculus. New York: McGraw Hill Higher Education.

Dyfyniad Arddull Chicago

Barnett, Raymond A., và Michael R. Ziegler. Precalculus. New York: McGraw Hill Higher Education, 2008.

Dyfyniad MLA

Barnett, Raymond A., và Michael R. Ziegler. Precalculus. New York: McGraw Hill Higher Education, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.