Bioastronomy The Next Steps : Proceedings of the 99th Colloquium of the International Astronomical Union held in Balaton, Hungary, June 22-27, 1987 (Engelsk)
Bioastronomy - the next steps : proceedings of the 99. Colloquium of the International Astronomical Union held in Balaton, Hungary, June 22-27, 1987 (engelsk)
Education and urban renaissance: based on papers presented at the National Conference on the Educational Dimension of the Model Cities Program held at The University of Chicago, Center for Continuing Education (Engelsk)