00520cz a2200181n 4500 n 50018035 DLC 20230829064817.0 800423n| azannaabn |a aaa n 50018035 (CaEvSKY)skya1139961 (OCoLC)oca00053480 DLC eng rda DLC DLC OCoLC NNC MX-SlUA OCoLC 1885 1955 edtf Weyl, Hermann, 1885-1955 eng Veĭlʹ, German, 1885-1955 Symmetry, 1952 : title page (by Herman Weyl)