Ludwig Kniel
Raymond Henry Lopez
Unknown Author
A. K. Mattoo
Reuck
Canada. Environmental Protection Service
Nafees A. Khan
Frederick B. Abeles
J.C. Pech
Stanley Robert Sheeran
Joette Lee Steger
Lyle E. Craker
National Cancer Institute (U.S.). Division of Cancer Cause and Prevention.
Jag J. Singh
National Research Council
Harry Stierli
C. Chang
Professors' Workshop on Ethylene Production Midland, Mich. 1961.
Marshall Sittig