1991
. 1991. “Nfu's Annual Conference 1991”. Proceedings Of Nfu's Annual Conference 1991: Natural Resource Use And Changing Society, Interdisciplinary Approaches To Development, Agricultural University Of Norway, Aas, 23-24 May 1991.. Aas [Ås], Norway; Oslo, Norway: Norwegian Centre for International Agricultural Development, Agricultural University of Norway; Norwegian Association for Development Research. http://www.worldcat.org/oclc/29625062.
1990
. 1990. “International Association For The Study Of Common Property: "Designing Sustainability On The Commons," 27-30 September 1990, Duke University, Durham, North Carolina”. In . Durham, NC: Duke University. https://dlc.dlib.indiana.edu/dlc/browse?value=Designing+Sustainability+on+the+Commons%2C+the+First+Biennial+Conference+of+the+International+Association+for+the+Study+of+Common+Property&type=conference.
. 1990. “Program Of Events”. In International Association For The Study Of Common Property: "Designing Sustainability On The Commons," 27-30 September 1990, Held At Duke University, Durham, North Carolina. Durham, NC: Duke University. https://dlc.dlib.indiana.edu/dlc/browse?value=Designing+Sustainability+on+the+Commons%2C+the+First+Biennial+Conference+of+the+International+Association+for+the+Study+of+Common+Property&type=conference.
