Helson, Henry Harmonic analysis / Henry Helson - 2nd ed. - New Delhi : Hindustan Book Agency, 2010. - viii, 227 p. : ill. ; 23 cm. - Texts and readings in mathematics., 7 . Includes bibliographical references. ISBN: 9789380250052 Subjects--Topical Terms: Mathematics.Harmonic analysis--Mathematics. Dewey Class. No.: 515.2422 / HEL