Dyfyniad APA

Mader, S. S., & By Windelspecht, M. (2018). Human Biology (15th ed.). McGraw Hill.

Dyfyniad Arddull Chicago

Mader, Sylvia S., and Michael By Windelspecht. Human Biology. 15th ed. New York: McGraw Hill, 2018.

Dyfyniad MLA

Mader, Sylvia S., and Michael By Windelspecht. Human Biology. 15th ed. McGraw Hill, 2018.

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