Cita APA (7th ed.)

(1970). Normal aging: Reports form the Duke Longitudinal Study, 1955-1969. Duke Unversity Press.

Cita Chicago (17th ed.)

Normal Aging: Reports Form the Duke Longitudinal Study, 1955-1969. Durham: Duke Unversity Press, 1970.

Cita MLA (9th ed.)

Normal Aging: Reports Form the Duke Longitudinal Study, 1955-1969. Duke Unversity Press, 1970.