Cita APA (7th ed.)

Fromkin, V., Rodman, R., & Hyams, N. (2011). An introduction to language (9a. ed.). Wadsworth Cengage Learning.

Cita Chicago (17th ed.)

Fromkin, Victoria, Robert Rodman, i Nina Hyams. An Introduction to Language. 9a. ed. Wadsworth Cengage Learning, 2011.

Cita MLA (9th ed.)

Fromkin, Victoria, et al. An Introduction to Language. 9a. ed. Wadsworth Cengage Learning, 2011.