TY  - BOOK
AU  - Lagaaij,Robert
AU  - van der Vlerk,Isaak Martinus
ED  - Rijksuniversiteit Leiden.
TI  - The pliocene bryozoa of the low countries and their bearing on the marine stratigraphy of the North sea region
PY  - 1952///
CY  - Maastricht
PB  - Ernest Van Aelst
KW  - RMCA
KW  - GG General geology
N1  - Diss. Phd Diss. lic
ER  -