APA aipamena

COVEY STEPHEN R. (1999). LIVING THE 7 HABITS: STORIES OF COURAGE AND INSPIRATION. FIRESIDE BOOK.

Chicago Style aipamena

COVEY STEPHEN R. LIVING THE 7 HABITS: STORIES OF COURAGE AND INSPIRATION. NEW YORK: FIRESIDE BOOK, 1999.

MLA aipamena

COVEY STEPHEN R. LIVING THE 7 HABITS: STORIES OF COURAGE AND INSPIRATION. FIRESIDE BOOK, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.