National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

PB121775

Publication Date	1956
Disclaimer	The titles in this collection are historical in nature, and have been compiled solely with the purpose of providing the scientific and technical community the opportunity to research titles that may not be available elsewhere. Although NTIS makes every effort to provide online full-text access for all titles, there are instances where the title may not be available in digitized format for online access.
Contact	For more information, please contact NTIS Customer Contact Center at 1-800-553-6847.

Luminous and Spectral Reflectance as Well as Colors of Natural Objects (Albedo and Color of Terrain Features).