APA Citation

Fröhlich, M., Lee, K., Mitra Setia, T., Schuppli, C., & van Schaik, C. P. (2019). The loud scratch: A newly identified gesture of Sumatran orangutan mothers in the wild. Biol Lett.

Chicago Style Citation

Fröhlich, Marlen, Kevin Lee, Tatang Mitra Setia, Caroline Schuppli, and Carel P. van Schaik. "The Loud Scratch: A Newly Identified Gesture of Sumatran Orangutan Mothers in the Wild." Biol Lett 2019.

MLA Citation

Fröhlich, Marlen, et al. "The Loud Scratch: A Newly Identified Gesture of Sumatran Orangutan Mothers in the Wild." Biol Lett 2019.

Warning: These citations may not always be 100% accurate.