por Begeman, Myron L. (Myron Louis), 1893- [autor] | Amstead, B. H [autor].
por Amstead, B. H [autor] | Begeman, Myron L. (Myron Louis), 1893- | Ostwald, Phillip F, 1931-.
por Amstead, B. H [autor] | Begman, Myron L [autor] | Noyola Pintor, Bernardo [traductor] | Ostwald, Phillip F, 1931- [autor] | Amstead, B. H. Manufacturing processes.
por Amstead, B. H [autor].