Krushkalʹ, S. L. Quasiconformal mappings and Riemann surfaces / Samuil L. Krushkalʹ ; edited by Irvin [i.e. Irwin] Kra. - Washington : New York : Winston ; distributed by Halsted Press, 1979. - xii, 319 p. ; 23 cm. - Scripta series in mathematics . Includes Bibliography and index. ISBN: 0470266953 Subjects--Topical Terms: Quasiconformal mappings.Riemann surfaces. Dewey Class. No.: 515.9 / KRQ 1979