Habl, C., & Auersperg, A. M. I. (2017). The keybox: Shape-frame fitting during tool use in Goffin’s cockatoos (Cacatua goffiniana). PloS one, 12(11), e0186859. https://doi.org/10.1371/journal.pone.0186859
Chicago Style (17th ed.) CitationHabl, Cornelia, and Alice Marie Isabel Auersperg. "The Keybox: Shape-frame Fitting During Tool Use in Goffin’s Cockatoos (Cacatua Goffiniana)." PloS One 12, no. 11 (2017): e0186859. https://doi.org/10.1371/journal.pone.0186859.
MLA (9th ed.) CitationHabl, Cornelia, and Alice Marie Isabel Auersperg. "The Keybox: Shape-frame Fitting During Tool Use in Goffin’s Cockatoos (Cacatua Goffiniana)." PloS One, vol. 12, no. 11, 2017, p. e0186859, https://doi.org/10.1371/journal.pone.0186859.
Warning: These citations may not always be 100% accurate.