Cita APA (7a ed.)

Abbs, B., & Freebairn, I. (1989). Developing strategies. Strategies 3: An integrated language course for intermediate students. Logman Group U. K. Limited.

Cita Chicago Style (17a ed.)

Abbs, Brian, y Ingrid Freebairn. Developing Strategies. Strategies 3: An Integrated Language Course for Intermediate Students. London: Logman Group U. K. Limited, 1989.

Cita MLA (9a ed.)

Abbs, Brian, y Ingrid Freebairn. Developing Strategies. Strategies 3: An Integrated Language Course for Intermediate Students. Logman Group U. K. Limited, 1989.