![Cover image for Origin and refining of petroleum A symposium co-sponsored by the Division of Petroleum Chemistry of the American Chemical Society and the Canadian Society for chemical engineering of the Chemical Institute of Canada at the ACS-Cıc joint conference, Toronto, Canada, May 25-28, 1970. H. G. McGrath and M. E. Charles symposium chairman. Cover image for Origin and refining of petroleum A symposium co-sponsored by the Division of Petroleum Chemistry of the American Chemical Society and the Canadian Society for chemical engineering of the Chemical Institute of Canada at the ACS-Cıc joint conference, Toronto, Canada, May 25-28, 1970. H. G. McGrath and M. E. Charles symposium chairman.](/client/assets/5.0.0.9/ctx//client/images/no_image.png)
Origin and refining of petroleum A symposium co-sponsored by the Division of Petroleum Chemistry of the American Chemical Society and the Canadian Society for chemical engineering of the Chemical Institute of Canada at the ACS-Cıc joint conference, Toronto, Canada, May 25-28, 1970. H. G. McGrath and M. E. Charles symposium chairman.