Problems and Theorems in Analysis IGeorge Pólya, Gábor Szegő, Dorothee Aeppli · First published 1997Open the Tome
Combinatorial enumeration of groups, graphs, and chemical compoundsGeorge Pólya, R. C. Read, Dorothee Aeppli · First published 1987Open the Tome
Problems and theorems in analysisGeorge Pólya, Gábor Szegő, C.E. Billigheimer, Dorothee Aeppli, James Allister Jenkins · First published 1925Open the Tome
