APA (7th ed.) Zitazioa

(1971). How to get more done in less time / [by] Joseph D. Cooper.

Chicago Style (17th ed.) Zitazioa

How to Get More Done in Less Time / [by] Joseph D. Cooper. 1971.

MLA (9th ed.) Zitazioa

How to Get More Done in Less Time / [by] Joseph D. Cooper. 1971.

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