Cita APA (7th ed.)
BURY, M., & HOLME, A. (1991). LIFE AFTER NINETY. ROUTLEDGE.
Cita Chicago (17th ed.)
BURY, M., i A. HOLME. LIFE AFTER NINETY. Londres: ROUTLEDGE, 1991.
Cita MLA (9th ed.)
BURY, M., i A. HOLME. LIFE AFTER NINETY. ROUTLEDGE, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.