Cita APA (7a ed.)
GRAY, J., & BLAIR, P. (1992). YOUR HEALTH IN RETIREMENT. AGE CONCERN ENGLAND.
Cita Chicago Style (17a ed.)
GRAY, J.A.M, y P. BLAIR. YOUR HEALTH IN RETIREMENT. Londres: AGE CONCERN ENGLAND, 1992.
Cita MLA (9a ed.)
GRAY, J.A.M, y P. BLAIR. YOUR HEALTH IN RETIREMENT. AGE CONCERN ENGLAND, 1992.
Precaución: Estas citas no son 100% exactas.