SEMLER RICARDO. (2004). SEVEN DAY WEEKEND: BETTER WAY TO WORK IN THE 21ST CENTURY. ARROW BOOKS.
Čikaški stil citiranja (17. izdanje)SEMLER RICARDO. SEVEN DAY WEEKEND: BETTER WAY TO WORK IN THE 21ST CENTURY. LONDON: ARROW BOOKS, 2004.
MLA način citiranja (9. izdanje)SEMLER RICARDO. SEVEN DAY WEEKEND: BETTER WAY TO WORK IN THE 21ST CENTURY. ARROW BOOKS, 2004.
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