Dyfyniad APA

World Leisure and Recreation Association. (1984). World leisure & recreation. World Leisure and Recreation Association.

Dyfyniad Arddull Chicago

World Leisure and Recreation Association. World Leisure & Recreation. New York: World Leisure and Recreation Association, 1984.

Dyfyniad MLA

World Leisure and Recreation Association. World Leisure & Recreation. World Leisure and Recreation Association, 1984.

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