Dyfyniad APA

Gray, P. (1967). dictionary of the biological sciences. Van Nostrand Reinhold Company.

Dyfyniad Arddull Chicago

Gray, Peter. Dictionary of the Biological Sciences. New York: Van Nostrand Reinhold Company, 1967.

Dyfyniad MLA

Gray, Peter. Dictionary of the Biological Sciences. Van Nostrand Reinhold Company, 1967.

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