Buchert, M., & Wolf, R. (1989). Annotated Listing of German Materials for Elementary School Programs.
Citazione stile Chigago Style (17a edizione)Buchert, Mary, e Rosemarie Wolf. Annotated Listing of German Materials for Elementary School Programs. 1989.
Citatione MLA (9a ed.)Buchert, Mary, e Rosemarie Wolf. Annotated Listing of German Materials for Elementary School Programs. 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.