APA-referens (7:e uppl.)
Obionu, C. (2018). Guide to tropical public health and community medicine (First edition.). Ezu Books Limited.
Chicago-referens (17:e uppl.)
Obionu, Christopher. Guide to Tropical Public Health and Community Medicine. First edition. [Place of publication not identified]: Ezu Books Limited, 2018.
MLA-referens (9:e uppl.)
Obionu, Christopher. Guide to Tropical Public Health and Community Medicine. First edition. Ezu Books Limited, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.