HAMP-LYONS, L., & HEASLEY, B. (1990). Study writing: A Course in written english for academicand professional purposes. Cambridge University Press.
Citazione stile Chigago Style (17a edizione)HAMP-LYONS, Liz, e Ben HEASLEY. Study Writing: A Course in Written English for Academicand Professional Purposes. New York: Cambridge University Press, 1990.
Citatione MLA (9a ed.)HAMP-LYONS, Liz, e Ben HEASLEY. Study Writing: A Course in Written English for Academicand Professional Purposes. Cambridge University Press, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.