Hakim, C. (2000). Research design: Successful designs for social and economic research (2nd ed.). Routledge.
Chicago ZitierstilHakim, Catherine. Research Design: Successful Designs for Social and Economic Research. 2nd ed. London: Routledge, 2000.
MLA ZitierstilHakim, Catherine. Research Design: Successful Designs for Social and Economic Research. 2nd ed. Routledge, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.