Dyfyniad APA

George H. Fried. (1995). Biology: A complete course with 900 questions and answers. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

George H. Fried. Biology: A Complete Course With 900 Questions and Answers. New York: McGraw-Hill, 1995.

Dyfyniad MLA

George H. Fried. Biology: A Complete Course With 900 Questions and Answers. New York: McGraw-Hill, 1995.

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