Παραπομπή APA

Sundar Rao, P., & Richard, J. (2006). Introduction to biostatistics and research methods (4th ed.). Prentice-Hall of India.

Παραπομπή Chicago Style

Sundar Rao, P.S.S, και J. Richard. Introduction to Biostatistics and Research Methods. 4th ed. New Delhi: Prentice-Hall of India, 2006.

Παραπομπή MLA

Sundar Rao, P.S.S, και J. Richard. Introduction to Biostatistics and Research Methods. 4th ed. Prentice-Hall of India, 2006.