Cowan, L. D. (1983). Personnel management and banking. Institute of Bankers in association with King's College, London.
Lua i Stíl Chicago (17ú heag.)Cowan, L. D. Personnel Management and Banking. London: Institute of Bankers in association with King's College, London, 1983.
Lua MLA (8ú heag.)Cowan, L. D. Personnel Management and Banking. Institute of Bankers in association with King's College, London, 1983.
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