Cita APA (7a ed.)
Böll, H. (1973). Group portrait with lady. McGraw-Hill.
Cita Chicago Style (17a ed.)
Böll, Heinrich. Group Portrait with Lady. New York: McGraw-Hill, 1973.
Cita MLA (9a ed.)
Böll, Heinrich. Group Portrait with Lady. McGraw-Hill, 1973.
Precaución: Estas citas no son 100% exactas.