Koch, R., & Schwartz-Petterson, J. (2000). The Portfolio Guidebook: Implementing Quality in an Age of Standards. Bill Harp Professional Teachers Library.
Citazione stile Chigago Style (17a edizione)Koch, Richard, e Jean Schwartz-Petterson. The Portfolio Guidebook: Implementing Quality in an Age of Standards. Bill Harp Professional Teachers Library. 2000.
Citatione MLA (9a ed.)Koch, Richard, e Jean Schwartz-Petterson. The Portfolio Guidebook: Implementing Quality in an Age of Standards. Bill Harp Professional Teachers Library. 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.