Citazione Stile APA (7a Edizione)

ebrary, Inc, Engestrom, Y., & Kerosuo, H. (2007). Activity theory and workplace learning. Emerald Group Publishing.

Citazione stile Chigago Style (17a edizione)

ebrary, Inc, Yrjo Engestrom, e Hannele Kerosuo. Activity Theory and Workplace Learning. Bradford, England: Emerald Group Publishing, 2007.

Citatione MLA (9a ed.)

ebrary, Inc, et al. Activity Theory and Workplace Learning. Emerald Group Publishing, 2007.