Report on the evaluation of Infoterra for the United Nations Environment Programme /
prepared by John Martyn ; with the collaboration of an international evaluation team and the methodological support of Unesco.

APA Citation

Martyn, J., Unesco., United Nations Environment Programme. (1981). Report on the evaluation of Infoterra for the United Nations Environment Programme. Paris: United Nations Educational, Scientific, and Cultural Organization.

MLA Citation

Martyn, John, Unesco, and United Nations Environment Programme. Report On the Evaluation of Infoterra for the United Nations Environment Programme. Paris: United Nations Educational, Scientific, and Cultural Organization, 1981.