Cita APA (7th ed.)
Erickson, L. (1997). Sharing the wonder of birds with kids. Pfeifer-Hamilton.
Cita Chicago (17th ed.)
Erickson, Laura. Sharing the Wonder of Birds with Kids. Duluth, Minn.: Pfeifer-Hamilton, 1997.
Cita MLA (9th ed.)
Erickson, Laura. Sharing the Wonder of Birds with Kids. Pfeifer-Hamilton, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.