APA
Park J. E. &. P. K., . (1989). Park's textbook of preventive and social medicine .-12th ed .-81-900118-0-4. M/s Banarsidas Bhanot, Jabalpur: .
Chicago
Park J E & Park K, . 1989. Park's textbook of preventive and social medicine .-12th ed .-81-900118-0-4. M/s Banarsidas Bhanot, Jabalpur: .
Harvard
Park J. E. &. P. K., . (1989). Park's textbook of preventive and social medicine .-12th ed .-81-900118-0-4. M/s Banarsidas Bhanot, Jabalpur: .
MLA
Park J E & Park K, . Park's textbook of preventive and social medicine .-12th ed .-81-900118-0-4. M/s Banarsidas Bhanot, Jabalpur: . 1989.