Cita APA (7a ed.)

Beck, T., Homer, W. I., & Bullock, J. G. (1989). An American vision: John G. Bullock and the photo-secession. Aperture : University of Maryland, Baltimore County.

Cita Chicago Style (17a ed.)

Beck, Tom, William Innes Homer, y John G. Bullock. An American Vision: John G. Bullock and the Photo-secession. Baltimore, Maryland: Aperture : University of Maryland, Baltimore County, 1989.

Cita MLA (8a ed.)

Beck, Tom, et al. An American Vision: John G. Bullock and the Photo-secession. Aperture : University of Maryland, Baltimore County, 1989.