Ford, B. G., & Williams, S. (2008). No more pacifier for Piggy! (1st American ed.). Boxer Books ; Distributed in the U.S. and Canada by Sterling Pub. Co..
Cita Chicago Style (17a ed.)Ford, Bernette G., y Sam Williams. No More Pacifier for Piggy! 1st American ed. [London] : New York: Boxer Books ; Distributed in the U.S. and Canada by Sterling Pub. Co., 2008.
Cita MLA (8a ed.)Ford, Bernette G., y Sam Williams. No More Pacifier for Piggy! 1st American ed. Boxer Books ; Distributed in the U.S. and Canada by Sterling Pub. Co., 2008.
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