United Nations Centre for Regional Development, United Nations Environment Programme, & International Workshop on Environmental Management for Local and Regional Development. (1987). Environmental management for local and regional development. United Nations Centre for Regional Development.
Cytowanie według stylu Chicago (wyd. 17)United Nations Centre for Regional Development, United Nations Environment Programme, i International Workshop on Environmental Management for Local and Regional Development. Environmental Management for Local and Regional Development. Nagoya, Japan: United Nations Centre for Regional Development, 1987.
Cytowanie według stylu MLA (wyd. 9)United Nations Centre for Regional Development, et al. Environmental Management for Local and Regional Development. United Nations Centre for Regional Development, 1987.