APA (7 वां संस्करण) प्रशस्ति पत्र
Obionu, C. (2018). Guide to tropical public health and community medicine (First edition.). Ezu Books Limited.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Obionu, Christopher. Guide to Tropical Public Health and Community Medicine. First edition. [Place of publication not identified]: Ezu Books Limited, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Obionu, Christopher. Guide to Tropical Public Health and Community Medicine. First edition. Ezu Books Limited, 2018.
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