NBS Semicentennial Symposium on Optical Image Evaluation National Bureau of Standards, United States. National Bureau of Standards, & Symposium on Optical Image Evaluation. (1954). Optical image evaluation: Proceedings of the NBS Semicentennial Symposium on Optical Image Evaluation, held at the NBS, on October 18, 19 and 20, 1951. U.S. Department of Commerce, National Bureau of Standards.

NBS Semicentennial Symposium on Optical Image Evaluation National Bureau of Standards, United States. National Bureau of Standards, and Symposium on Optical Image Evaluation. Optical Image Evaluation: Proceedings of the NBS Semicentennial Symposium on Optical Image Evaluation, Held at the NBS, on October 18, 19 and 20, 1951. Washington: U.S. Department of Commerce, National Bureau of Standards, 1954.

NBS Semicentennial Symposium on Optical Image Evaluation National Bureau of Standards, et al. Optical Image Evaluation: Proceedings of the NBS Semicentennial Symposium on Optical Image Evaluation, Held at the NBS, on October 18, 19 and 20, 1951. U.S. Department of Commerce, National Bureau of Standards, 1954.