Yapp, N., & Hopkinson, A. (1995). 150 years of photo journalism: The Hulton Getty Picture Collection. Nick Yapp (Part I); Amanda Hopkinson (Part II). Könemann.
Chicago-viite (17. p.)Yapp, Nick, ja Amanda Hopkinson. 150 Years of Photo Journalism: The Hulton Getty Picture Collection. Nick Yapp (Part I); Amanda Hopkinson (Part II). Köln: Könemann, 1995.
MLA-viite (8. p.)Yapp, Nick, ja Amanda Hopkinson. 150 Years of Photo Journalism: The Hulton Getty Picture Collection. Nick Yapp (Part I); Amanda Hopkinson (Part II). Könemann, 1995.
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