Leedy, P. D., Newby, T. J., & Ertmer, P. A. (1997). Pratical research: Planning and design (6th ed.). Upper Saddle New Jersey: Merrill.
Chicago Style CitationLeedy, Paul D., Timothy J. Newby, and Peggy A. Ertmer. Pratical Research: Planning and Design. 6th ed. Upper Saddle New Jersey: Merrill, 1997.
MLA CitationLeedy, Paul D., Timothy J. Newby, and Peggy A. Ertmer. Pratical Research: Planning and Design. 6th ed. Upper Saddle New Jersey: Merrill, 1997.
Warning: These citations may not always be 100% accurate.