by K.A. Fox | .
by Satish C. Seth | .
by Robert U. Ayres | .
by Edwin H. Colbert | .
by G. E. Shuliman | .
by Ernst S. Reese | Frederick J. Lighter.
by W.R. Butt | .
by H. Ghadimi | .
by Gordon Maskew Fair | .
by T.William Lambe | Robert V. Whitman.
by T.William Lambe | & Robert V. Whitman.
by Maskew Gordon Fair | .
by Jerome O. Nriagu | .
by L.D. Baver | .
by M. Alexander | .
by O.W. Israelsem | Vauge E. Henderson.
by F.E. Tuoneaue | .
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