Billingsley, Patrick. Convergence of probability measures. - New York: Wiley, [1968]. - xii, 253 p.: illus., 23 cm. - Wiley series in probability and mathematical statistics . Bibliography: p. 243-247. ISBN: 0471072427 LCCN: 68023922 //r922 Nat. Bib. No.: GB68-25637 Subjects--Topical Terms: Probability measuresMetric spaces.Convergence. Dewey Class. No.: 519.1 / B598c