Gaya APA

Yerkes, L, Y, L. (2003). Beans : four principles for running a business in good times or bad : a business fable taken fromreal life.-- (Ed. 1.--). America: John Wiley & Sons.

Gaya MLA

Yerkes, Leslie, Yerkes,, Leslie. "Beans : four principles for running a business in good times or bad : a business fable taken fromreal life.--". Ed. 1.-- America: John Wiley & Sons, 2003. Buku.