Cita APA (7th ed.)

Kiplinger's Personal Finance Magazine. Kiplinger Washington Editors Inc.

Cita Chicago (17th ed.)

Kiplinger's Personal Finance Magazine. Kiplinger Washington Editors Inc.

Cita MLA (9th ed.)

Kiplinger's Personal Finance Magazine. Kiplinger Washington Editors Inc.

Atenció: Aquestes cites poden no estar 100% correctes.