Photometry and colorimetry of retroreflection :
state-of-measurement-accurary report /
Kenneth L. Eckerle, Center for Radiation Research, National Measurement Laboratory, National Bureau of Standards.

APA Citation

Eckerle, K. L., Center for Radiation Research., United States. National Bureau of Standards. (1980). Photometry and colorimetry of retroreflection: state-of-measurement-accurary report. Washington: Dept. of Commerce, National Bureau of Standards .

MLA Citation

Eckerle, Kenneth L, Center for Radiation Research, and United States. National Bureau of Standards. Photometry And Colorimetry of Retroreflection: State-of-measurement-accurary Report. Washington: Dept. of Commerce, National Bureau of Standards , 1980.

Warning: These citations may not always be complete (especially for serials).