Cita APA (7a ed.)

Frommer, P. R., & Finegan, E. (1999). Looking at languages: A workbook in elementary linguistics (2nd ed.). Harcourt Brace College.

Cita Chicago Style (17a ed.)

Frommer, Paul R., y Edward Finegan. Looking at Languages: A Workbook in Elementary Linguistics. 2nd ed. Fort Worth [etc.]: Harcourt Brace College, 1999.

Cita MLA (9a ed.)

Frommer, Paul R., y Edward Finegan. Looking at Languages: A Workbook in Elementary Linguistics. 2nd ed. Harcourt Brace College, 1999.