APA (7th ed.) Citation

Leon, G. (1971). The economics and management of system construction. Longman.

Chicago Style (17th ed.) Citation

Leon, George. The Economics and Management of System Construction. London: Longman, 1971.

MLA (8th ed.) Citation

Leon, George. The Economics and Management of System Construction. Longman, 1971.

Warning: These citations may not always be 100% accurate.