Carin, A. A., & Sund, R. B. (1975). Teaching modern science (2nd ed.). Charles E. Merrill.
Cita Chicago (17th ed.)Carin, Arthur A., i Robert B. Sund. Teaching Modern Science. 2nd ed. Columbus, Ohio: Charles E. Merrill, 1975.
Cita MLA (8th ed.)Carin, Arthur A., i Robert B. Sund. Teaching Modern Science. 2nd ed. Charles E. Merrill, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.