Cita APA (7a ed.)

Laing, J., & MacQuarrie, D. (1989). Fifty years in the system. Mainstream Publ.

Cita Chicago Style (17a ed.)

Laing, Jimmy, y Dermot MacQuarrie. Fifty Years in the System. Edinburgh: Mainstream Publ, 1989.

Cita MLA (9a ed.)

Laing, Jimmy, y Dermot MacQuarrie. Fifty Years in the System. Mainstream Publ, 1989.