Cita APA (7a ed.)
Abbs, B., & Freebairn, I. (1990). Building strategies. Strategies 2.: An integrated language course for learners of english. Student' Book (1.vyd.21.dotlač.). Longman Group UK.
Cita Chicago Style (17a ed.)
Abbs, Brian, y Ingrid Freebairn. Building Strategies. Strategies 2.: An Integrated Language Course for Learners of English. Student' Book. 1.vyd.21.dotlač. Harlow: Longman Group UK, 1990.
Cita MLA (9a ed.)
Abbs, Brian, y Ingrid Freebairn. Building Strategies. Strategies 2.: An Integrated Language Course for Learners of English. Student' Book. 1.vyd.21.dotlač. Longman Group UK, 1990.
Precaución: Estas citas no son 100% exactas.