Source document microfilms-- :
determination of ASA speed and average gradient : American national standard for photography (sensitometry) /
Secretariat, National Association of Photographic Manufacturers, Inc. ; approved March 11, 1987, American National Standards Institute, Inc.
APA Citation
American National Standards Institute. (1987). Source document microfilms--: determination of ASA speed and average gradient : American national standard for photography (sensitometry). New York, N.Y. (1430 Broadway, New York 10018): American National Standards Institute.
MLA Citation
American National Standards Institute. Source Document Microfilms--: Determination of ASA Speed And Average Gradient : American National Standard for Photography (sensitometry). New York, N.Y. (1430 Broadway, New York 10018): American National Standards Institute, 1987.
Warning: These citations may not always be complete (especially for serials).