Dyfyniad APA

Perry, J. W., Morton, D., & Perry, J. B. (2009). Laboratory manual for principles of biology II: Biology 104. Cengae Learning.

Dyfyniad Arddull Chicago

Perry, James W., David Morton, and Joy B. Perry. Laboratory Manual for Principles of Biology II: Biology 104. Australia: Cengae Learning, 2009.

Dyfyniad MLA

Perry, James W., et al. Laboratory Manual for Principles of Biology II: Biology 104. Cengae Learning, 2009.

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