Cita APA (7th ed.)

Hurlock, E. B. (1956). Child development (3a. ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Hurlock, Elizabeth B. Child Development. 3a. ed. Nueva York: McGraw-Hill, 1956.

Cita MLA (9th ed.)

Hurlock, Elizabeth B. Child Development. 3a. ed. McGraw-Hill, 1956.