Cita APA (7th ed.)

Johnson. (2013). Vulnerable Children (1.). Springer New York.

Cita Chicago (17th ed.)

Johnson. Vulnerable Children. 1. Springer New York, 2013.

Cita MLA (8th ed.)

Johnson. Vulnerable Children. 1. Springer New York, 2013.

Atenció: Aquestes cites poden no estar 100% correctes.