Abbs, B. (1990). Blueprint one. Longman.
Cita Chicago Style (17a ed.)Abbs, Brian. Blueprint One. England: Longman, 1990.
Cita MLA (9a ed.)Abbs, Brian. Blueprint One. Longman, 1990.
警告：這些引文格式不一定是100％准確.
Cita APA (7a ed.)
Abbs, B. (1990). Blueprint one. Longman.
Cita Chicago Style (17a ed.)Abbs, Brian. Blueprint One. England: Longman, 1990.
Cita MLA (9a ed.)Abbs, Brian. Blueprint One. Longman, 1990.