Citazione APA

Gassner, J., & Quinn, E. (1969). The reader's encyclopedia of world drama. Crowell.

Stile di citazione Chicago

Gassner, John, e Edward Quinn. The Reader's Encyclopedia of World Drama. New York: Crowell, 1969.

Citazione MLA

Gassner, John, e Edward Quinn. The Reader's Encyclopedia of World Drama. Crowell, 1969.