Παραπομπή APA

Burch, P., & Heinrich, C. J. (2016). Mixed methods for policy research and program evaluation. Sage.

Παραπομπή Chicago Style

Burch, Patricia, και Carolyn J. Heinrich. Mixed Methods for Policy Research and Program Evaluation. Los Angeles: Sage, 2016.

Παραπομπή MLA

Burch, Patricia, και Carolyn J. Heinrich. Mixed Methods for Policy Research and Program Evaluation. Sage, 2016.