Leventhal-Belfer, L. (2008). Why do i have to?: A book for children who find tehmselves frustrated by everyday rules. Jessica Kingsley.
Cita Chicago Style (17a ed.)Leventhal-Belfer, Laurie. Why Do I Have to?: A Book for Children Who Find Tehmselves Frustrated by Everyday Rules. London [etc.]: Jessica Kingsley, 2008.
Cita MLA (9a ed.)Leventhal-Belfer, Laurie. Why Do I Have to?: A Book for Children Who Find Tehmselves Frustrated by Everyday Rules. Jessica Kingsley, 2008.
Precaución: Estas citas no son 100% exactas.