Caplan, F. (1990). The quality system: A sourcebook for managers and engineers (2nd ed.). Chilton Book Co..
Lua i Stíl Chicago (17ú heag.)Caplan, Frank. The Quality System: A Sourcebook for Managers and Engineers. 2nd ed. Radnor, Pa.: Chilton Book Co., 1990.
Lua MLA (8ú heag.)Caplan, Frank. The Quality System: A Sourcebook for Managers and Engineers. 2nd ed. Chilton Book Co., 1990.
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