Tromly, A. (1987). Thinking it Though: A Practical Guide to Academia Essay Writing. Academic Skills Centre Trent University.
Chicago-referens (17:e uppl.)Tromly, Annette. Thinking It Though: A Practical Guide to Academia Essay Writing. Peterborough, Ontario: Academic Skills Centre Trent University, 1987.
MLA-referens (9:e uppl.)Tromly, Annette. Thinking It Though: A Practical Guide to Academia Essay Writing. Academic Skills Centre Trent University, 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.