On time to the doctorate [electronic resource] : a study of the increased time to complete doctorates in science and engineering / Howard Tuckman, Susan Coyle, Yupin Bae.
Publication details: Washington, D.C. : National Academy Press, 1990.Description: x, 177 p. : illISBN:- 030904085X
- Q183.3.A1 T83 1990eb

Includes bibliographical references.
Electronic reproduction. Palo Alto, Calif. : ebrary, 2009. Available via World Wide Web. Access may be limited to ebrary affiliated libraries.