Shippen, Katherine B. The pool of knowledge : how the United Nations share their skills / Katherine B. Shippen. - 1st ed. - New York : Harper & row, c 1954. - vi, 148 p. : ill. ; 21 cm. Includes index. 338 338 Subjects--Topical Terms: Technical assistance.--United Nations. Dewey Class. No.: 341.13 / S64p