Cita APA (7th ed.)

FERRELL, O., HIRT, G., & FERRELL, L. (2011). Business: A changing world. McGraw-Hill Book Company.

Cita Chicago (17th ed.)

FERRELL, O.C, Geoffrey HIRT, i Linda FERRELL. Business: A Changing World. McGraw-Hill Book Company, 2011.

Cita MLA (9th ed.)

FERRELL, O.C, et al. Business: A Changing World. McGraw-Hill Book Company, 2011.