Hopkins, D. M. (1993). Factors Influencing the Outcome of Challenges to Materials in Secondary Schools.
Citazione stile Chigago Style (17a edizione)Hopkins, Dianne McAfee. Factors Influencing the Outcome of Challenges to Materials in Secondary Schools. 1993.
Citatione MLA (9a ed.)Hopkins, Dianne McAfee. Factors Influencing the Outcome of Challenges to Materials in Secondary Schools. 1993.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.