Blom, G. (1984). Gertrude Blom: Bearing Witness. (A. Harris & M. Sartor, Eds.). University of North Carolina Press/Center for Documentary Photography.

Blom, Gertrude. Gertrude Blom: Bearing Witness. Edited by Alex Harris and Margaret Sartor. University of North Carolina Press/Center for Documentary Photography, 1984.

Blom G. Gertrude Blom: Bearing Witness. Harris A, Sartor M, editors. University of North Carolina Press/Center for Documentary Photography; 1984.

Blom, Gertrude. Gertrude Blom: Bearing Witness. Edited by Alex Harris and Margaret Sartor, University of North Carolina Press/Center for Documentary Photography, 1984.

Blom G. Gertrude Blom: Bearing Witness. Harris A, Sartor M, editors. University of North Carolina Press/Center for Documentary Photography; 1984.