TY  - BOOK
AU  - Milligan,George C.
TI  - The changing earth: an introduction to geology 
SN  - 0070824487
AV  - QE28.M64 1977 .M64
PY  - 1977///
CY  - Toronto, New York
PB  - McGraw-Hill Ryerson
KW  - Geology
N1  - Errata slip inserted; Includes bibliographical references and index
ER  -