TY  - BOOK
ED  - Pan American Institute Of Geography And History. Commission On Geography
TI  - Conference of the geography commission: Ottawa 1975 
AV  - G56 P35 1975
PY  - 1975///
CY  - Ottawa
PB  - Pan american institute of geography and history
KW  - Geografía
KW  - Congresos
ER  -