Cita APA (7th ed.)

Data File, Public Use: Public Libraries Survey: Fiscal Year 2004.

Cita Chicago (17th ed.)

Data File, Public Use: Public Libraries Survey: Fiscal Year 2004.

Cita MLA (9th ed.)

Data File, Public Use: Public Libraries Survey: Fiscal Year 2004.

Atenció: Aquestes cites poden no estar 100% correctes.