Manpower resources in the earth sciences; a study conducted jointly by the National Science Foundation and the U.S. Dept. of Labor, Bureau of Labor Statistics. [Prepared in the Bureau of Labor Statistics, Division of Manpower and Employment Statistics, by Solomon Shapiro].
Manpower resources in the earth sciences; a study conducted jointly by the National Science Foundation and the U.S. Dept. of Labor, Bureau of Labor Statistics. [Prepared in the Bureau of Labor Statistics, Division of Manpower and Employment Statistics, by Solomon Shapiro].