Cita APA (7th ed.)
Pictures of the Year & Olson, C. (1987). The Best of Photojournalism 12. National Press Photographers Association ; University of Missouri, School of Journalism.
Cita Chicago (17th ed.)
Pictures of the Year i Cal Olson. The Best of Photojournalism 12. Seattle, EUA : Columbia, EUA: National Press Photographers Association ; University of Missouri, School of Journalism, 1987.
Cita MLA (9th ed.)
Pictures of the Year i Cal Olson. The Best of Photojournalism 12. National Press Photographers Association ; University of Missouri, School of Journalism, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.