1900-
Guide to the study of rocks / Leslie Erskine Spock. - 2nd ed. - New York : Harper, 1962. - 298 p. : ill. ; 24 cm. - Harper's geoscience series .
Includes index.
52011444
GB53-5281
Petrology.
QE431 / .S75
552 / SPG
Guide to the study of rocks / Leslie Erskine Spock. - 2nd ed. - New York : Harper, 1962. - 298 p. : ill. ; 24 cm. - Harper's geoscience series .
Includes index.
52011444
GB53-5281
Petrology.
QE431 / .S75
552 / SPG