Jacob Fruchtbaum
Reinhard H. Wohlbier
Donald McGlinchey
F. W. Lambert
A. Levy
L. Bates
David H. Wilson
Milton N. Kraus
P. A. Shamlou
PEP (Professional Engineering Publishers)
Wolfgang Reisner
Unknown Author
Hendrik Colijn
Conveyor Equipment Manufacturers Association. Engineering Conference.
M. S. Troitsky
Donald Mcglinchey
R. D. Marcus
P. A. Wood
Institution of Chemical Engineers (Great Britain)