BURDEN, E. (1990). Photo Enlowrage A Tracing File Souce Book Ernest Burden. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BURDEN, Ernest. Photo Enlowrage A Tracing File Souce Book Ernest Burden. McGraw-Hill, 1990.
Lua MLA (8ú heag.)BURDEN, Ernest. Photo Enlowrage A Tracing File Souce Book Ernest Burden. McGraw-Hill, 1990.
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