TY  - BOOK
AU  - Gavala,Juan
AU  - 
AU  - Del Valle,Alfonso
ED  - International Geological Congress
TI  - Detroit de Gibraltar, Jerez, Tarifa, Algeciras, nord du Maroc
PY  - 1926///
CY  - Madrid
PB  - Graficas reunidas, s.a
KW  - Geology
KW  - Spain
KW  - Morocco (Spanish Zone)
N1  - At head of title: Excursion A-1. XIVe Congre�s geologique international, Madrid. 1926
ER  -