Safford, B. R. (2002). Reference Sources for Elementary Teachers: A Suggested Core Collection.
Citazione stile Chigago Style (17a edizione)Safford, Barbara Ripp. Reference Sources for Elementary Teachers: A Suggested Core Collection. 2002.
Citatione MLA (9a ed.)Safford, Barbara Ripp. Reference Sources for Elementary Teachers: A Suggested Core Collection. 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.