Gaya APA

Lapan, S, D. et al (2012). Qualitative Research : An Introduction to Methods and Designs (Ed. 1). San Fransisco: Jossey-Bass.

Gaya MLA

Lapan, Stephen, D. et al. "Qualitative Research : An Introduction to Methods and Designs". Ed. 1 San Fransisco: Jossey-Bass, 2012. Text.