Cita APA (7a ed.)
Pólya, G. (1977). Mathematical methods in science. Mathematical association.
Cita Chicago Style (17a ed.)
Pólya, G. Mathematical Methods in Science. Washington: Mathematical association, 1977.
Cita MLA (9a ed.)
Pólya, G. Mathematical Methods in Science. Mathematical association, 1977.
Precaución: Estas citas no son 100% exactas.