TY  - BOOK
AU  - Heemstra, R. J.
AU  - Ray, R. M., coaut.Abrams, J. R., coaut.
TI  - Minicomputer graphic methods for geochemical surveys / by R-. J. Heemstra, R. M. Ray, J. R. abrams
CY  - Bartlesville, Oklahoma : r, Department of Energy.
ER  -