Citazione Stile APA (7a Edizione)

Abbs, B., & Freebairn, I. (1982). Studying Strategies. Students' Book. Strategies 4. Longman.

Citazione stile Chigago Style (17a edizione)

Abbs, Brian, e Ingrid Freebairn. Studying Strategies. Students' Book. Strategies 4. Essex: Longman, 1982.

Citatione MLA (9a ed.)

Abbs, Brian, e Ingrid Freebairn. Studying Strategies. Students' Book. Strategies 4. Longman, 1982.