Dyfyniad APA

Lewis, R. J. S. (1991). Reproductively active chemicals: A reference guide. Van Nostrand Reinhold.

Dyfyniad Arddull Chicago

Lewis, Richard J. Sr. Reproductively Active Chemicals: A Reference Guide. New York: Van Nostrand Reinhold, 1991.

Dyfyniad MLA

Lewis, Richard J. Sr. Reproductively Active Chemicals: A Reference Guide. Van Nostrand Reinhold, 1991.

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