Science and technology in the academic enterprise status, trends, and issues : a discussion paper (National Academy Press, 1989)
"October 1989.". - Working Group chairman: Erich Bloch. - The data was collected and prepared by Division of Policy Research and Analysis, National Science Foundation. - Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002