Dyfyniad APA

(1974). Recreation, resources, and right decisions / by Elwood L. Shafer [and others].

Dyfyniad Arddull Chicago

Recreation, Resources, and Right Decisions / by Elwood L. Shafer [and Others]. 1974.

Dyfyniad MLA

Recreation, Resources, and Right Decisions / by Elwood L. Shafer [and Others]. 1974.

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