Dyfyniad APA

Alusik, J. (1973). Illustrated handbook of general science teaching aids. Parker Pub. Co.

Dyfyniad Arddull Chicago

Alusik, John. Illustrated Handbook of General Science Teaching Aids. West Nyack, N.Y: Parker Pub. Co, 1973.

Dyfyniad MLA

Alusik, John. Illustrated Handbook of General Science Teaching Aids. Parker Pub. Co, 1973.

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