APA način citiranja (7. izdanje)

SCHAFFER ROBERT. (2001). MANAGING PRODUCTIVITY. JAICO PUBLISHING HOUSE.

Čikaški stil citiranja (17. izdanje)

SCHAFFER ROBERT. MANAGING PRODUCTIVITY. MUMBAI: JAICO PUBLISHING HOUSE, 2001.

MLA način citiranja (9. izdanje)

SCHAFFER ROBERT. MANAGING PRODUCTIVITY. JAICO PUBLISHING HOUSE, 2001.