. . "Proceedings of the 49th Porcelain Enamel Institute Technical forum a collection of papers delivered at the 49th Porcelain Enamel Institute Technical Forum, October 7-8, 1987, The Ohio State University, Columbus, OH"@en . . . "Proceedings of the 49th Porcelain Enamel Institute Technical Forum : a collection of papers presented at the 49th Porcelain Enamel Institute Technical Forum, October 7-8, 1987, the Ohio State University, Columbus, OH" . . "Conference papers and proceedings"@en . . . . . . . "Electronic books"@en . . . . . "49th Porcelain Enamel Institute Technical forum"@en . . . . "Proceedings of the 49th Porcelain Enamel Institute Technical Forum : a collection of papers, October 7-8, 1987, The Ohio State University, Columbus, OH" . "Proceedings of the 49th Porcelain Enamel Institute Technical forum : a collection of papers delivered at the 49th Porcelain Enamel Institute Technical Forum, October 7-8, 1987, The Ohio State University, Columbus, OH"@en . . "Porcelain Enamel Institute. Technical Forum" . . "Porcelain Enamel Institute (U.S.). Technical Forum" . . "Porcelain Enamel Institute Technical Forum (49th : Oct. 1987 : Columbus,)" . . . "Porcelain Enamel Institute Technical Forum (49th : 1988 : Ohio State University)" . . .