Dyfyniad APA

Krapp, K. M. (1998). Notable twentieth-century scientists: Supplement. Gale Research.

Dyfyniad Arddull Chicago

Krapp, Kristine M. Notable Twentieth-century Scientists: Supplement. Detroit: Gale Research, 1998.

Dyfyniad MLA

Krapp, Kristine M. Notable Twentieth-century Scientists: Supplement. Gale Research, 1998.

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