TY  - BOOK
AU  - DUFF,P.MCLD.
TI  - HOLMES'PRINCIPLES OF PHYSICAL GEOLOGY, 4 TH ED / 
U1  - 551 
PY  - 1992///
CY  - [S.N] : 
PB  - CHOPMAN & HALL WITH ELBS ، 
KW  - PHYSICAL GEOGRAPHY
KW  - PHYSICAL
KW  - PHYSICAL GEOLOGY
ER  -