TY  - BOOK
ED  - Commonwealth Agricultural Bureaux
TI  - IUFRO information Service gor Developing Countries: Forestry Abstracts 
U1  - 634.9 21st ed.
CY  - Vienna
PB  - Unesco's Mab Programme
KW  - Factor of the Environment, Biology, Forest Management
N1  - Reproduced by Gracious authorization of the Commonwealth Agriculture Bureaux
no.86/1
ER  -