Environment :
Environment :
annotated bibliography : author and subject index : natural resources and the human environment FAO publications and docum ents (1967-1970) = Environnement : bibliographie annotáee : index par a utheurs et par sujets : les ressources naturelles et le milieu humain.
- [S.l.] : Food and Agriculture Organizaion of the United Nation, D ocumentation Centre, c1971.
- 38, 13, 360 p. ; 28 cm.
Agriculture -- Environmental aspects.
Agricultural resources.
Agricultural ecology.
Agriculture -- Environmental aspects.
Agricultural resources.
Agricultural ecology.