Cita APA

Weisner, S. G., & Hartford, W. F. (2002). American portraits: Biographies in United States history (2nd ed.). Boston: McGraw-Hill.

Citación estilo Chicago

Weisner, Stephen G., y William F. Hartford. American Portraits: Biographies in United States History. 2nd ed. Boston: McGraw-Hill, 2002.

Cita MLA

Weisner, Stephen G., y William F. Hartford. American Portraits: Biographies in United States History. 2nd ed. Boston: McGraw-Hill, 2002.