Scheraga, M. (1998). Practical English writing skills: A handbook with practice (2nd ed.). NTC.
Citazione stile Chigago Style (17a edizione)Scheraga, Mona. Practical English Writing Skills: A Handbook with Practice. 2nd ed. Lincolnwood, Ill: NTC, 1998.
Citatione MLA (9a ed.)Scheraga, Mona. Practical English Writing Skills: A Handbook with Practice. 2nd ed. NTC, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.