APA
Rao S. P. S. S. . R. J., . (2018). Introduction to biostatistics and research methods, 5th ed. PHI Learning pvt ltd: Delhi.
Chicago
Rao Sundar P S S Richard J, . 2018. Introduction to biostatistics and research methods, 5th ed. PHI Learning pvt ltd: Delhi.
Harvard
Rao S. P. S. S. . R. J., . (2018). Introduction to biostatistics and research methods, 5th ed. PHI Learning pvt ltd: Delhi.
MLA
Rao Sundar P S S Richard J, . Introduction to biostatistics and research methods, 5th ed. PHI Learning pvt ltd: Delhi. 2018.