Crowl, T. K. (1996). Fundamentals of educational research (2nd ed.). Brown & Benchmark.
Cita Chicago (17th ed.)Crowl, Thomas K. Fundamentals of Educational Research. 2nd ed. Madison, WI: Brown & Benchmark, 1996.
Cita MLA (9th ed.)Crowl, Thomas K. Fundamentals of Educational Research. 2nd ed. Brown & Benchmark, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.