APA Style
Park, K. (2009).
Park's Textbook of preventive and social medicine : Textbook of preventive and social medicine (20th ed,).
Jabalpur:
Bhanot.
MLA Style
Park, K.
"Park's Textbook of preventive and social medicine : Textbook of preventive and social medicine".
20th ed,
Jabalpur:
Bhanot,
2009.
Text.