Dyfyniad APA

Graaff, K. M. (1994). A photographic atlas for the biology laboratory (2nd.ed.). Morton.

Dyfyniad Arddull Chicago

Graaff, Kent M. A Photographic Atlas for the Biology Laboratory. 2nd.ed. Colorado: Morton, 1994.

Dyfyniad MLA

Graaff, Kent M. A Photographic Atlas for the Biology Laboratory. 2nd.ed. Morton, 1994.

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