1 - Famous problems and other monographs - 1st editionKlein, Christian Félix (1849-1925) / Mordell, Louis Joel (1888-1972) / Sheppard, W. F. / MacMahon, Percy Alexander (1854-1929) (Major)Cote : [60 KLE 55]
2 - Famous problems and other monographs - Second editionKlein, Christian Félix (1849-1925) / Mordell, Louis Joel (1888-1972) / Sheppard, W. F. / MacMahon, Percy Alexander (1854-1929) (Major)Cote : [60 KLE 62]