TY  - BOOK
AU  - Darwin, Charles
TI  - Darwin on humus and the earthworm; the formation of vegetable mould through the action of worms with observations on their habits
U1  - QL391 595.16 
PY  - 1966///
CY  - London
PB  - Faber and Faber
KW  - Earthworms
ER  -