Cita APA (7th ed.)

Geddes, M., & Sturtridge, G. (1979). Listening links: Student's book. Heinemann Educational Books.

Cita Chicago (17th ed.)

Geddes, Marion, i Gill Sturtridge. Listening Links: Student's Book. Londres: Heinemann Educational Books, 1979.

Cita MLA (9th ed.)

Geddes, Marion, i Gill Sturtridge. Listening Links: Student's Book. Heinemann Educational Books, 1979.