Cita APA (7th ed.)
Erickson, L. (1994). For the birds: An uncommon guide. Pfeifer-Hamilton.
Cita Chicago (17th ed.)
Erickson, Laura. For the Birds: An Uncommon Guide. Duluth, Minn.: Pfeifer-Hamilton, 1994.
Cita MLA (9th ed.)
Erickson, Laura. For the Birds: An Uncommon Guide. Pfeifer-Hamilton, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.