TY  - BOOK
AU  - Boysen-Jensen, Peter,
TI  - Causal plant-geography
U1  - P 581.9 B69 
PY  - 1949///
CY  - Kobenhavn
PB  - I kommission hos Munksgaard
KW  - Plant ecology
KW  - Phytogeography
N1  - Includes bibliographical references (p. 19)
ER  -