Author
Barnes, V.E.,
Humble Oil and Refining Co.,
Shell Oil Co.,
Pan American Petroleum Corp.,
Mobil Oil Co.,
Wright, A.C.,
McCallum, H.D.,
Wendlandt, E.A.,
Burford, S.O.,
Shelby, T.H.,
Gibson, D.T.,
Eaton, R.W.,
Shelby, C.A.,
Pieper, M.K.
