UDOH, C. O. (2007). First aid and emergency care. Chris-Rose Publishers.
Lua i Stíl Chicago (17ú heag.)UDOH, C. O. First Aid and Emergency Care. Chris-Rose Publishers, 2007.
Lua MLA (9ú heag.)UDOH, C. O. First Aid and Emergency Care. Chris-Rose Publishers, 2007.
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