Okon, E. .. (2019). The World of Bats. Obafemi Awolowo University Press Limited.
Lua i Stíl Chicago (17ú heag.)Okon, Eyo .E. The World of Bats. Obafemi Awolowo University Press Limited, 2019.
Lua MLA (9ú heag.)Okon, Eyo .E. The World of Bats. Obafemi Awolowo University Press Limited, 2019.
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