Dyfyniad APA

Unesco. (1979). New Unesco source book for science teaching. Unesco, ; University press.

Dyfyniad Arddull Chicago

Unesco. New Unesco Source Book for Science Teaching. Paris, Hyderabad, India: Unesco, ; University press, 1979.

Dyfyniad MLA

Unesco. New Unesco Source Book for Science Teaching. Unesco, ; University press, 1979.

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