Cita APA (7a ed.)

Farmer, J., & Friar, J. H. (2010). O Christmas tree: Its history and holiday traditions. Charlesbridge.

Cita Chicago Style (17a ed.)

Farmer, Jacqueline, y Joanne H. Friar. O Christmas Tree: Its History and Holiday Traditions. Watertown, MA: Charlesbridge, 2010.

Cita MLA (8a ed.)

Farmer, Jacqueline, y Joanne H. Friar. O Christmas Tree: Its History and Holiday Traditions. Charlesbridge, 2010.

Precaución: Estas citas no son 100% exactas.