Whelan, R., & Capa, C. (1981). Double take: A Comparative Look at Photographs. Clarkson N. Potter.
Cita Chicago (17th ed.)Whelan, Richard, i Cornell Capa. Double Take: A Comparative Look at Photographs. New York, USA: Clarkson N. Potter, 1981.
Cita MLA (9th ed.)Whelan, Richard, i Cornell Capa. Double Take: A Comparative Look at Photographs. Clarkson N. Potter, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.