TY  - BOOK
AU  - Humboldt , Alexander Von 
TI  - Aspects of nature: in different lands and different climates
U1  - 577 21st ed.
PY  - 1849///
CY  - London
PB  - Longmans, Brown, Green, and Longmans
KW  - Ecology
KW  - Environmental factors
KW  - Plant interaction
N1  - Content: v.2
ER  -