00728nam a2200229Ia 4500 13422 BIBL 20160527192641.0 861118s1944 nyua b 00010 eng 44003524 //r86 DLC/ICU ICU EVLG 793.74 N877 c1 QA95 .N6 510.76 793.74 N877 Northrop, Eugene P. (Eugene Purdy) 258970 Local Riddles in mathematics a book of paradoxes Eugene P. Northrop. New York D. Van Nostrand company, inc. 1944. viii, 262 p. illus., diagrs. "Notes and references": p. [245]-254. Mathematical recreations. 132754 Local 9728 9728 0 0 0 793_740000000000000_N877 0 evl 182924 10 10 1 2016-05-27 19159 0 793.74 N877 80000001276735 2016-05-27 00:00:00 r:13422 z:NCC:D 6