Helscher, T. P. The subject of genre: Thomas P. Helscher. Genre and writing : issues, arguments, alternatives.(1997).
Citazione stile Chigago Style (17a edizione)Helscher, Thomas P. "The Subject of Genre: Thomas P. Helscher." Genre and Writing : Issues, Arguments, Alternatives.(1997) .
Citatione MLA (8a ed.)Helscher, Thomas P. "The Subject of Genre: Thomas P. Helscher." Genre and Writing : Issues, Arguments, Alternatives.(1997), .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.