Chronister, R., & Kraehenbuehl, D. (1980). Teacher library books 41 to 60. National Keyboard Arts Associates.
Citazione stile Chigago Style (17a edizione)Chronister, Richard, e David Kraehenbuehl. Teacher Library Books 41 to 60. Princeton: National Keyboard Arts Associates, 1980.
Citatione MLA (9a ed.)Chronister, Richard, e David Kraehenbuehl. Teacher Library Books 41 to 60. National Keyboard Arts Associates, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.