Cita APA (7th ed.)
Hopkins, C. D. (1980). Understanding educational research: An inquiry approach. Merrill.
Cita Chicago (17th ed.)
Hopkins, Charles D. Understanding Educational Research: An Inquiry Approach. Columbus, Ohio: Merrill, 1980.
Cita MLA (9th ed.)
Hopkins, Charles D. Understanding Educational Research: An Inquiry Approach. Merrill, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.