APA

Higman S., International Institute for Environment and Development & SGS Forestry. (1999). The sustainable forestry handbook :a practical guide for tropical forest managers on implementing new standards / (Acc: 1971). London: Earthscan Publications.

Chicago

Higman Sophie, International Institute for Environment and Development and SGS Forestry. 1999. The sustainable forestry handbook :a practical guide for tropical forest managers on implementing new standards / (Acc: 1971). London: Earthscan Publications.

Harvard

Higman S., International Institute for Environment and Development and SGS Forestry. (1999). The sustainable forestry handbook :a practical guide for tropical forest managers on implementing new standards / (Acc: 1971). London: Earthscan Publications.

MLA

Higman Sophie, International Institute for Environment and Development and SGS Forestry. The sustainable forestry handbook :a practical guide for tropical forest managers on implementing new standards / (Acc: 1971). London: Earthscan Publications. 1999.