SANYAL, R. B. Colour Change in Hylobates Hoolock, Harlan. Records of the Zoological Survey of India, [S. l.], v. 1, n. 3, p. 0276–0278, 1907. DOI: 10.26515/rzsi/v1/i3/1907/163401. Disponível em: https://recordsofzsiojs.sscldl.in/index.php/zsoi/article/view/163401. Acesso em: 19 sep. 2024.