APA (7th ed.) Zitazioa
Strong, E. P. (1962). Increasing office productivity: A seven-step program. McGraw-Hill.
Chicago Style (17th ed.) Zitazioa
Strong, Earl P. Increasing Office Productivity: A Seven-step Program. New York: McGraw-Hill, 1962.
MLA (9th ed.) Zitazioa
Strong, Earl P. Increasing Office Productivity: A Seven-step Program. McGraw-Hill, 1962.
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