APA

National Council for the Aged, . (1983). Retirement Age: Fixed or Flexible. Dublin: National Council for the Aged.

Chicago

National Council for the Aged, . 1983. Retirement Age: Fixed or Flexible. Dublin: National Council for the Aged.

Harvard

National Council for the Aged, . (1983). Retirement Age: Fixed or Flexible. Dublin: National Council for the Aged.

MLA

National Council for the Aged, . Retirement Age: Fixed or Flexible. Dublin: National Council for the Aged. 1983.