Wright, M., & Kim, V. (2012). Earth Day, birthday! Marshall Cavendish Children.
Cita Chicago Style (17a ed.)Wright, Maureen, y Violet Kim. Earth Day, Birthday! New York: Marshall Cavendish Children, 2012.
Cita MLA (8a ed.)Wright, Maureen, y Violet Kim. Earth Day, Birthday! Marshall Cavendish Children, 2012.
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