Laumer, I. B., Auersperg, A. M. I., Bugnyar, T., & Call, J. (2019). Orangutans (Pongo abelii) make flexible decisions relative to reward quality and tool functionality in a multi-dimensional tool-use task. PloS one, 14(2), e0211031. https://doi.org/10.1371/journal.pone.0211031
Chicago Style (17th ed.) CitationLaumer, Isabelle B., Alice M. I. Auersperg, Thomas Bugnyar, and Josep Call. "Orangutans (Pongo Abelii) Make Flexible Decisions Relative to Reward Quality and Tool Functionality in a Multi-dimensional Tool-use Task." PloS One 14, no. 2 (2019): e0211031. https://doi.org/10.1371/journal.pone.0211031.
MLA (9th ed.) CitationLaumer, Isabelle B., et al. "Orangutans (Pongo Abelii) Make Flexible Decisions Relative to Reward Quality and Tool Functionality in a Multi-dimensional Tool-use Task." PloS One, vol. 14, no. 2, 2019, p. e0211031, https://doi.org/10.1371/journal.pone.0211031.