TY  - BOOK
AU  - Gilbert,Charles M.
AU  - Christensen,Mark N.(Mark Newell),1930-.
TI  - Physical geology: laboratory course
SN  - 0070232067
PY  - 1967///
CY  - New York
PB  - McGraw-Hill Book
KW  - Geology
KW  - Laboratory manuals
ER  -