Podnecky, J., & Adelson-Goldstein, J. (2007). Step forward workbook: Language for everyday life. Oxford University Press.
Citazione stile Chigago Style (17a edizione)Podnecky, Janet, e Jayme Adelson-Goldstein. Step Forward Workbook: Language for Everyday Life. Oxford: Oxford University Press, 2007.
Citatione MLA (9a ed.)Podnecky, Janet, e Jayme Adelson-Goldstein. Step Forward Workbook: Language for Everyday Life. Oxford University Press, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.