Cita APA (7th ed.)
Barnes-Svarney, P. The New York Public Library science desk reference. Macmillan.
Cita Chicago (17th ed.)
Barnes-Svarney, Patricia. The New York Public Library Science Desk Reference. Nueva York, EUA: Macmillan.
Cita MLA (9th ed.)
Barnes-Svarney, Patricia. The New York Public Library Science Desk Reference. Macmillan.
Atenció: Aquestes cites poden no estar 100% correctes.