Gaya APA

Certo, S, C., Certo, S, T. (2009). Modern management: concepts and skills (7). New Jersey: Pearson Prentice Hall.

Gaya MLA

Certo, Samuel, C.., Certo, S., Trevis. "Modern management: concepts and skills". 7 New Jersey: Pearson Prentice Hall, 2009. Text.