https://catalogue-scientifique.canada.ca/record=1053636~S6*frc
Rechercher United States. Department of Commerce. Office of Technical Services; Rechercher Institute for Applied Technology (U.S.); Rechercher United States. National Technical Information Service; Rechercher Clearinghouse for Federal Scientific and Technical Information (U.S.); Rechercher United States. Dept. of Commerce. Clearinghouse for Federal Scientific and Technical Information
U.S. Dept. of Commerce, Office of Technical Services, 1900
Publication gouvernementale