Cita APA

Yarbrough, B. V., & Beth V. Yarbrough; Robert M. Yarbrough. The. United States of America: Thomson South.

Chicago Style Citation

Yarbrough, Beth V., i Beth V. Yarbrough; Robert M. Yarbrough. The. United States of America: Thomson South.

Cita MLA

Yarbrough, Beth V., i Beth V. Yarbrough; Robert M. Yarbrough. The. United States of America: Thomson South.

Atenció: Aquestes cites poden no estar 100% correctes.