Kanigel, Robert. The man who knew infinity : a life of the genius Ramanujan / Robert Kanigel. - London : Abacus c1991. - x, 438 p., [16] p. of plates : ill., maps ; 21 cm. ISBN: 9780349104522 Subjects--Personal Names: Ramanujan, Aiyangar Srinivasa, 1887-1920. Hardy, G. H. 1877-1947. Subjects--Index Terms: Mathematicians--India--Biography. Mathematicians--Great Britain--Biography Dewey Class. No.: 510/.92 / KAN