Helscher, T. P. The subject of genre: Thomas P. Helscher. Genre and writing : issues, arguments, alternatives.(1997).
Chicago-viite (17. p.)Helscher, Thomas P. "The Subject of Genre: Thomas P. Helscher." Genre and Writing : Issues, Arguments, Alternatives.(1997) .
MLA-viite (8. p.)Helscher, Thomas P. "The Subject of Genre: Thomas P. Helscher." Genre and Writing : Issues, Arguments, Alternatives.(1997), .
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.