Dyfyniad APA

Unknown. (1960). Dr. Charles J. Kelly Sitting with Lab Equipment.

Dyfyniad Arddull Chicago

Unknown. Dr. Charles J. Kelly Sitting with Lab Equipment. 1960.

Dyfyniad MLA

Unknown. Dr. Charles J. Kelly Sitting with Lab Equipment. 1960.

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