McPhail, D. (2012). The family tree. Henry Holt.
Cita Chicago (17th ed.)McPhail, David. The Family Tree. New York: Henry Holt, 2012.
Cita MLA (8th ed.)McPhail, David. The Family Tree. Henry Holt, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.