Cita APA (7th ed.)

Binham, P., & Philip, B. (1977). Executive english: Book-2. Longman.

Cita Chicago (17th ed.)

Binham, Philip, i Binham Philip. Executive English: Book-2. London: Longman, 1977.

Cita MLA (9th ed.)

Binham, Philip, i Binham Philip. Executive English: Book-2. Longman, 1977.