TY  - BOOK
AU  - DUNBAR, M.J
TI  - Ecological development in polar regions ; a study in evolution
U1  - 574.509 98 D89E 
PY  - 1968///
PB  - Englewood Cliffs,U.S
KW  - ECOLOGY -- POLAR REGIONS
KW  - EVOLUTION
KW  - NATURAL HISTORY -- POLAR REGIONS
ER  -