Morgan, S. (1996). Butterflies, bugs, and worms. Kingfisher.
Cita Chicago Style (17a ed.)Morgan, Sally. Butterflies, Bugs, and Worms. New York: Kingfisher, 1996.
Cita MLA (8a ed.)Morgan, Sally. Butterflies, Bugs, and Worms. Kingfisher, 1996.
Precaución: Estas citas no son 100% exactas.