APA

International Board for Soil Research and Management (IBSRAM), . (1991). Evaluation for sustainable land management in the developing world v.1 : towards the development of an international framework : proceedings of the international workshop, Chiang Rai, Thailand 15-21 September, 1991. : IBSRAM.

Chicago

International Board for Soil Research and Management (IBSRAM), . 1991. Evaluation for sustainable land management in the developing world v.1 : towards the development of an international framework : proceedings of the international workshop, Chiang Rai, Thailand 15-21 September, 1991. : IBSRAM.

Harvard

International Board for Soil Research and Management (IBSRAM), . (1991). Evaluation for sustainable land management in the developing world v.1 : towards the development of an international framework : proceedings of the international workshop, Chiang Rai, Thailand 15-21 September, 1991. : IBSRAM.

MLA

International Board for Soil Research and Management (IBSRAM), . Evaluation for sustainable land management in the developing world v.1 : towards the development of an international framework : proceedings of the international workshop, Chiang Rai, Thailand 15-21 September, 1991. : IBSRAM. 1991.