Παραπομπή APA

Singh, D., & Chaudhary, F. S. (1986). Theory and analysis of Sample Survey Designs. New Age International.

Παραπομπή Chicago Style

Singh, Daroga, και F S. Chaudhary. Theory and Analysis of Sample Survey Designs. New Delhi: New Age International, 1986.

Παραπομπή MLA

Singh, Daroga, και F S. Chaudhary. Theory and Analysis of Sample Survey Designs. New Age International, 1986.