Mineralogy and instrumental neutron activation analysis of seven National Bureau of Standards and three Instituto de Pesquisas Tecnologicas clay reference samples / by J.W. Hosterman ... [et al.].
Imprint
[Reston, Va.?] : Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Free on application to the Books and Open-File Reports Section, U.S. Geological Survey, 1987.