Dyfyniad APA

Henri P Keller. (1982). Evaluation program physics: Principles and problems (Reproducible Masters). Columbus, Ohio: Charles E. Merrill.

Dyfyniad Arddull Chicago

Henri P Keller. Evaluation Program Physics: Principles and Problems (Reproducible Masters). Columbus, Ohio: Charles E. Merrill, 1982.

Dyfyniad MLA

Henri P Keller. Evaluation Program Physics: Principles and Problems (Reproducible Masters). Columbus, Ohio: Charles E. Merrill, 1982.

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