Dyfyniad APA

(1986). Chemistry teaching and the environment. Unesco Division of Science Technical and Vocational Education.

Dyfyniad Arddull Chicago

Chemistry Teaching and the Environment. Paris: Unesco Division of Science Technical and Vocational Education, 1986.

Dyfyniad MLA

Chemistry Teaching and the Environment. Unesco Division of Science Technical and Vocational Education, 1986.

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