Morse, Philip M. 1903-1985. Library effectiveness: : a systems approach [electronic resource] / [by] Philip M. Morse.. — Cambridge, Mass., : M.I.T. Press, [1968]. — x, 207 p. : illus. 24 cm. Bibliography: p. 202-203. LCCN: 68025379 Nat. Bib. Agency Control No.: 0175643 DNLM Subjects--Topical Terms: Library science--Mathematical models.Computacao Aplicada A Servicos BibliotecasBibliothèques--Évaluation.Library Science. LC Class. No.: Z670.5 / .M6 R025.1 M Dewey Class. No.: 025.1/01/8 National Library of Medicine Call No.: Z 670.5 / M886L 1968