Cita APA (7a ed.)

robins R. H. (1989). General linguistics: An introductory Survey (4th ed.). Longman.

Cita Chicago Style (17a ed.)

robins R. H. General Linguistics: An Introductory Survey. 4th ed. London: Longman, 1989.

Cita MLA (9a ed.)

robins R. H. General Linguistics: An Introductory Survey. 4th ed. Longman, 1989.