Warrell, D., & Ormerod, L. (1976). Snake venom ophthalmia and blindness caused by the spitting cobra (Naja nigricollis) in Nigeria.
Chicago Style (17. basım) AtıfWarrell, D., ve L. Ormerod. Snake Venom Ophthalmia and Blindness Caused by the Spitting Cobra (Naja Nigricollis) in Nigeria. 1976.
MLA (9th ed.) AtıfWarrell, D., ve L. Ormerod. Snake Venom Ophthalmia and Blindness Caused by the Spitting Cobra (Naja Nigricollis) in Nigeria. 1976.
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