por Osborne, Elsie L. (Elsie Letitia) [autor] | Harris, Martha, 1919-1987 [colaborador] | Rosenbluth Dina [colaborador] | Mastrogiacomo, Marta [traductor] | O'Shaughnessy, Edna [colaborador] | Osborne, Elsie L. (Elsie Letitia). Your 4 yearl old.
por O'Shaughnessy, Edna [autor] | Harris, Martha, 1919-1987 [colaborador] | Osborne, Elsie L. (Elsie Letitia) [colaborador] | Rosenbluth, Dina [colaborador] | Mastrogiacomo, Marta [traductor] | O'Shaughnessy, Edna. Your 8 year old.