Morse, Philip McCord Queues, inventories, and maintenance the analysis of operational system with variable demand and supply. - New York Wiley [1958] - ix, 202 p. diagrs., tables. 24 cm. Bibliography: p. 195-197. LCCN: 58006081 Subjects--Topical Terms: Queuing theory. LC Class. No.: QA273 / .M78 Dewey Class. No.: 519