Dyfyniad APA

(1971). The Journal of environmental education. Dembar Educational Research Services.

Dyfyniad Arddull Chicago

The Journal of Environmental Education. Madison, Wis.: Dembar Educational Research Services, 1971.

Dyfyniad MLA

The Journal of Environmental Education. Dembar Educational Research Services, 1971.

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