TY  - BOOK
ED  - International Geological Congress
TI  - Guide to excursion
PY  - 1967///-
CY  - Praha
PB  - Geological Survey of Czechoslovakia in Academia
KW  - Geology
KW  - Congresses
KW  - Czechoslovakia
N1  - At head of t.p.: International Geological Congress XXIII Session, Prague,1968
ER  -