Cita APA (7a ed.)

Henkes, K. (1989). Shhhh. Greenwillow Books.

Cita Chicago Style (17a ed.)

Henkes, Kevin. Shhhh. New York: Greenwillow Books, 1989.

Cita MLA (8a ed.)

Henkes, Kevin. Shhhh. Greenwillow Books, 1989.