Bernard G. Mendonça
Michelle K. Donnelly
Donald R. Buchele
R. A Helmuth
Lawrence J. Poppe
R. A. Helmuth
Particle Size Analysis Conference (4th 1981 Loughborough University of Technology)
John K. Beddow
Theodore Provder
Institute of Physics (Great Britain)
Riyad R. Irani
Poul Scheel Larsen
Charles Henry Bowen
Ralph Edwin Brandon
Institution of Chemical Engineers.
Herbert English Schweyer
United States. Inter-agency Committee on Water Resources
G. W. Phelps
Unknown Author