APA
Barbier E. B., International Institute For Environment And Develo, . (1988). Sustainable agriculture and the resource poor: policy issues and options. London: IIED.
Chicago
Barbier Edward B, International Institute For Environment And Develo, . 1988. Sustainable agriculture and the resource poor: policy issues and options. London: IIED.
Harvard
Barbier E. B., International Institute For Environment And Develo, . (1988). Sustainable agriculture and the resource poor: policy issues and options. London: IIED.
MLA
Barbier Edward B, International Institute For Environment And Develo, . Sustainable agriculture and the resource poor: policy issues and options. London: IIED. 1988.