Cita APA (7a ed.)

Abbs, B., & Freebairn, I. (1995). Blueprint: One. Longman.

Cita Chicago Style (17a ed.)

Abbs, Brian, y Ingrid Freebairn. Blueprint: One. Madrid: Longman, 1995.

Cita MLA (8a ed.)

Abbs, Brian, y Ingrid Freebairn. Blueprint: One. Longman, 1995.