TY  - BOOK
A1  - Darwin, Charles
T1  - The formation of vegetable mould : through the action of worms with observations on their habits
Y1  - 2006
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/9088
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-90889
UR  - http://caliban.mpiz-koeln.mpg.de/~stueber/darwin/worms/index.html
PB  - Murray
CY  - London
ER  -