Cita APA

Macridis, R. C. 1., & Ward, R. E. (1968). Europe (Second edition.). Englewood Cliffs, New Jersey: Prentice Hall, Inc..

Citación estilo Chicago

Macridis, Roy C. 1918-, y Robert Edward Ward. Europe. Second edition. Englewood Cliffs, New Jersey: Prentice Hall, Inc., 1968.

Cita MLA

Macridis, Roy C. 1918-, y Robert Edward Ward. Europe. Second edition. Englewood Cliffs, New Jersey: Prentice Hall, Inc., 1968.