Mitchell, M. L., & Jolley, J. M. (1992). Research design explained (2nd ed.). Harcourt Brace Jovanich.
Chicago Edition CitationMitchell, Mark L., and Janina M. Jolley. Research Design Explained. 2nd ed. Fort Worth, TX: Harcourt Brace Jovanich, 1992.
ציטוט MLAMitchell, Mark L., and Janina M. Jolley. Research Design Explained. 2nd ed. Harcourt Brace Jovanich, 1992.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.