Gaya APA

Watkins, M, J. (2013). The First 90 Days: Proven Strategies for Getting Up to Speed Faster and Smarter . United States of America: Hardvard Business Press.

Gaya MLA

Watkins, Michael, J. "The First 90 Days: Proven Strategies for Getting Up to Speed Faster and Smarter". United States of America: Hardvard Business Press, 2013. Text.