APA (7th ed.) Citation

Auersperg, A. M. I., Bayern, A. M. P. v., Gajdon, G. K., Huber, L., & Kacelnik, A. (2011). Flexibility in problem solving and tool use of kea and New Caledonian crows in a multi access box paradigm. PLoS ONE, 6(6), e20231. https://doi.org/10.1371/journal.pone.0020231

Chicago Style (17th ed.) Citation

Auersperg, Alice M I., Auguste M P von Bayern, Gyula K. Gajdon, Ludwig Huber, and Alex Kacelnik. "Flexibility in Problem Solving and Tool Use of Kea and New Caledonian Crows in a Multi Access Box Paradigm." PLoS ONE 6, no. 6 (2011): e20231. https://doi.org/10.1371/journal.pone.0020231.

MLA (9th ed.) Citation

Auersperg, Alice M I., et al. "Flexibility in Problem Solving and Tool Use of Kea and New Caledonian Crows in a Multi Access Box Paradigm." PLoS ONE, vol. 6, no. 6, 2011, p. e20231, https://doi.org/10.1371/journal.pone.0020231.