Cita APA (7th ed.)
Christenson, E., & Blake, V. (1980). Gaining through losing. Victor Books.
Cita Chicago (17th ed.)
Christenson, Evelyn, i Viola Blake. Gaining Through Losing. Wheaton, Ill.: Victor Books, 1980.
Cita MLA (9th ed.)
Christenson, Evelyn, i Viola Blake. Gaining Through Losing. Victor Books, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.