Feeroz, M. M., & Islam, M. A. (1992). Ecology and behaviour of hoolock gibbons of Bangladesh.
Citazione stile Chigago Style (17a edizione)Feeroz, Mohammad Mostafa, e Mohammad Anwarul Islam. Ecology and Behaviour of Hoolock Gibbons of Bangladesh. 1992.
Citatione MLA (9a ed.)Feeroz, Mohammad Mostafa, e Mohammad Anwarul Islam. Ecology and Behaviour of Hoolock Gibbons of Bangladesh. 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.