APA Citation

Galperin, P. I., Engeness, I., & Thomas, G. Psychological significance and difference between tools use by humans and animals: P.Y. Galperin's dissertation.

Chicago Style Citation

Galperin, Petr IAkovlevich, Irina Engeness, and Gethin Thomas. Psychological Significance and Difference between Tools Use By Humans and Animals: P.Y. Galperin's Dissertation.

MLA Citation

Galperin, Petr IAkovlevich, Irina Engeness, and Gethin Thomas. Psychological Significance and Difference between Tools Use By Humans and Animals: P.Y. Galperin's Dissertation.

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