Gaya APA

Wittkopf, E, R., Jr., C, W, K. (2001). The global agenda : issues and perspectives (6). Boston, Massachusetts: McGraw-Hill Higher Education.

Gaya MLA

Wittkopf, Eugene, R.., Jr., Charles, W., Kegley,. "The global agenda : issues and perspectives". 6 Boston, Massachusetts: McGraw-Hill Higher Education, 2001. Text.