Παραπομπή APA

Lal Das D K. (2015). Designs of social research. Rawat.

Παραπομπή Chicago Style

Lal Das D K. Designs of Social Research. Jaipur: Rawat, 2015.

Παραπομπή MLA

Lal Das D K. Designs of Social Research. Rawat, 2015.