Veracini, C., and F. Scalfari. “Enrico Hillyer Giglioli and His Contribution to the Primatology of the 19th Century”. Journal of Biological Research - Bollettino della Società Italiana di Biologia Sperimentale 85, no. 1 (November 15, 2012). Accessed August 4, 2021. https://pagepressjournals.org/index.php/jbr/article/view/4154.