por Rich, Barnett, 1906- [autor] | Schmidt, Philip A [autor] | Guerrero Ushakova, Ekaterina [traductor].
por Rich, Barnett, 1906- [autor] | Schmidt, Philip A [colaborador] | Hademenos, George J [editor] | Rich, Barnett, 1906-. Schaum's outline of theory and problems of geometry.
por Rich, Barnett, 1906- [autor] | Schmidt, Philip A [autor].
por Rich, Barnett, 1906- [autor] | Schmidt, Philip A [colaborador].