TY  - BOOK
AU  - Calver,M.A.
TI  - Paleogeography of Upper Westphalian deposits in NW Europe with reference to the Westphalian C North of the mobile variscan belt. With notes: Mededelingen
T2  - Environnement
SN  - 2-7384-2243-8
PY  - 1977///
PB  - Rijks Geologische Dienst
KW  - Economic policy
KW  - Environmental aspects
KW  - Environmental policy
KW  - Africa
KW  - Human ecology
KW  - Sustainable development
ER  -