Cita APA (7th ed.)

Wells, N. E. J. (1988). The Ageing population: Burden or challengen. Macmillan.

Cita Chicago (17th ed.)

Wells, Nicholas E. J. The Ageing Population: Burden or Challengen. Basingstoke, Hants: Macmillan, 1988.

Cita MLA (9th ed.)

Wells, Nicholas E. J. The Ageing Population: Burden or Challengen. Macmillan, 1988.