Klamkin, Marian. Picture postcards. Illustrated with photos. by Charles Klamkin. - New York, Dodd, Mead [1974] - 192 p. illus. 31 cm. Bibliography: p. 190. ISBN: 0396068898 Subjects--Topical Terms: Postcards--Collectors and collecting. LC Class. No.: NC1872 / .K55 1974b Dewey Class. No.: 769/.5