Dyfyniad APA

American Association for the Advancement of Science. (1963). Science - a process approach: Prepared for testing in the early grades. AAAS.

Dyfyniad Arddull Chicago

American Association for the Advancement of Science. Science - a Process Approach: Prepared for Testing in the Early Grades. Washington, DC: AAAS, 1963.

Dyfyniad MLA

American Association for the Advancement of Science. Science - a Process Approach: Prepared for Testing in the Early Grades. AAAS, 1963.

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