Cita APA (7a ed.)

Sovak, J., & Reid, M. (1992). Butterflies: Coloring Book. Dover Publications, INC.

Cita Chicago Style (17a ed.)

Sovak, Jan, y Monty Reid. Butterflies: Coloring Book. New York: Dover Publications, INC, 1992.

Cita MLA (9a ed.)

Sovak, Jan, y Monty Reid. Butterflies: Coloring Book. Dover Publications, INC, 1992.