Roy, R., & Gupta,M. Mahajan and Gupta textbook of preventive and social medicine (4th.). New Delhi.
Chicagoスタイル(17版)引用形式Roy, R., , Gupta,M. Mahajan and Gupta Textbook of Preventive and Social Medicine. 4th. 2023: New Delhi.
MLA(9版)引用形式Roy, R., , Gupta,M. Mahajan and Gupta Textbook of Preventive and Social Medicine. 4th. New Delhi.
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