Fromkin, V., & Rodman, R. (1998). An introduction to language (6th ed.). Harcourt Brace College Publishers.
Citazione stile Chigago Style (17a edizione)Fromkin, Victoria, e Robert Rodman. An Introduction to Language. 6th ed. Fort Worth: Harcourt Brace College Publishers, 1998.
Citatione MLA (8a ed.)Fromkin, Victoria, e Robert Rodman. An Introduction to Language. 6th ed. Harcourt Brace College Publishers, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.