Cita APA (7a ed.)

Carlsen, G. R., & Carlsen, R. C. (1979). Encounters: Themes in literature (3rd ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Carlsen, G. Robert, y Ruth Christoffer Carlsen. Encounters: Themes in Literature. 3rd ed. New York: McGraw-Hill, 1979.

Cita MLA (9a ed.)

Carlsen, G. Robert, y Ruth Christoffer Carlsen. Encounters: Themes in Literature. 3rd ed. McGraw-Hill, 1979.