Dyfyniad APA

Nelson, B. M. W. (1928). State recreation: Parks, forests and game preserves. National conference on State parks, Inc..

Dyfyniad Arddull Chicago

Nelson, Beatrice M. Ward. State Recreation: Parks, Forests and Game Preserves. Washington, D.C.: National conference on State parks, Inc., 1928.

Dyfyniad MLA

Nelson, Beatrice M. Ward. State Recreation: Parks, Forests and Game Preserves. National conference on State parks, Inc., 1928.

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