Henstock, Ralph. Theory of integration/ Ralph Henstock. - London: Butterworths, 1963. - ix, 168 p.: 19 cm. - Butterworths mathematical texts . Bibliography: p. 162-163. LCCN: 64009666 //r84 Nat. Bib. No.: GB63-15958 Subjects--Topical Terms: Calculus, Integral. Dewey Class. No.: 515.43 / H526t