Gaya APA

Renn, D., Iannuzzi, S. (2008). Hemispheres 4 (Ed. 1). Boston: McGraw-Hil Companies,Inc..

Gaya MLA

Renn, Diana., Iannuzzi, Susan. "Hemispheres 4". Ed. 1 Boston: McGraw-Hil Companies,Inc., 2008. Text.