Crowl, T. K. (1996). Fundamentals of educational research (2nd ed.). Brown & Benchmark.
Čikaški stil citiranja (17. izdanje)Crowl, Thomas K. Fundamentals of Educational Research. 2nd ed. Madison, WI: Brown & Benchmark, 1996.
MLA način citiranja (9. izdanje)Crowl, Thomas K. Fundamentals of Educational Research. 2nd ed. Brown & Benchmark, 1996.
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