18 books • 3 series
Sources of Ideas and Their Effectiveness in Parallel R& D Projects: July 1965 (Classic Reprint)
Meeting the Technical Information Needs of Research and Development Projects (Classic Reprint)
The Utilization of Information Sources During R& D Proposal Preparation (Classic Reprint)
Time Allocation Among Three Technical Information Channels by R& D Engineers (Classic Reprint)
Caterpillars in the Field and Garden (Field Guides (Oxford)) (Butterflies [or Other] Through Binoculars)