Steffy, B. E., & English, F. W. (1997). Curriculum and Assessment for World-Class Schools. The School Leader's Library: Leading for Learning.
Citazione stile Chigago Style (17a edizione)Steffy, Betty E., e Fenwick W. English. Curriculum and Assessment for World-Class Schools. The School Leader's Library: Leading for Learning. 1997.
Citatione MLA (9a ed.)Steffy, Betty E., e Fenwick W. English. Curriculum and Assessment for World-Class Schools. The School Leader's Library: Leading for Learning. 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.