Gaya APA

Allen, J., Zook, C. (2010). Profit From The Core : a return to growth in turbulent times (Update Edition). United States of America: Bain & Company, INC..

Gaya MLA

Allen, James., Zook, Chris. "Profit From The Core : a return to growth in turbulent times". Update Edition United States of America: Bain & Company, INC., 2010. Text.