Association for Supervision and Curriculum Development. (1964). Leadership through supervision. s.n.
Citazione stile Chigago Style (17a edizione)Association for Supervision and Curriculum Development. Leadership Through Supervision. Washington: s.n, 1964.
Citatione MLA (9a ed.)Association for Supervision and Curriculum Development. Leadership Through Supervision. s.n, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.