Positive Discipline for PreschoolersJane Nelsen, Cheryl Erwin, Roslyn Ann Duffy · First published 2019Open the Tome
Disciplina Positiva. Los Tres Primeros AñosJANE NELSEN, CHERYL ERWIN, ROSLYN ANN DUFFY, JORDI FONT BARRIS · First published 2018Open the Tome
Disciplina Positiva Para PreescolaresJane Nelsen, Cheryl Erwin, Roslyn Ann Duffy, Gemma Fors · First published 2014Open the Tome
Positive DisciplineJane Nelsen, Roslyn Ann Duffy, Linda Escobar, Kate Ortolano, Debbie Owen-Sohocki · First published 1996Open the Tome
