APA aipamena

HUBBARD RON L. (2001). TOOL FOR THE WORK PLACE. NEW ERA PUB. CO. LTD.

Chicago Style aipamena

HUBBARD RON L. TOOL FOR THE WORK PLACE. NEW ERA PUB. CO. LTD, 2001.

MLA aipamena

HUBBARD RON L. TOOL FOR THE WORK PLACE. NEW ERA PUB. CO. LTD, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.