Feeroz, M. M., & Islam, M. A. (1992). Ecology and behaviour of hoolock gibbons of Bangladesh.
Chicago Style (17. basım) AtıfFeeroz, Mohammad Mostafa, ve Mohammad Anwarul Islam. Ecology and Behaviour of Hoolock Gibbons of Bangladesh. 1992.
MLA (9th ed.) AtıfFeeroz, Mohammad Mostafa, ve Mohammad Anwarul Islam. Ecology and Behaviour of Hoolock Gibbons of Bangladesh. 1992.
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