Biro, D., Humle, T., Koops, K., Sousa, C., Hayashi, M., & Matsuzawa, T. (2010). Chimpanzee mothers at Bossou, Guinea carry the mummified remains of their dead infants.
Chicago-viite (17. p.)Biro, D., T. Humle, K. Koops, C. Sousa, M. Hayashi, ja T. Matsuzawa. Chimpanzee Mothers at Bossou, Guinea Carry the Mummified Remains of Their Dead Infants. 2010.
MLA-viite (9. p.)Biro, D., et al. Chimpanzee Mothers at Bossou, Guinea Carry the Mummified Remains of Their Dead Infants. 2010.
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