American Association for the Advancement of Science. (1963). Science - a process approach: Prepared for testing in the early grades. AAAS.
Cita Chicago (17th ed.)American Association for the Advancement of Science. Science - a Process Approach: Prepared for Testing in the Early Grades. Washington, DC: AAAS, 1963.
Cita MLA (9th ed.)American Association for the Advancement of Science. Science - a Process Approach: Prepared for Testing in the Early Grades. AAAS, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.