Steiner, P. O., & Dorfman, R. (1957). The economic status of the aged. University of California Press.
Chicago Style aipamenaSteiner, Peter O., and Robert Dorfman. The Economic Status of the Aged. Berkeley: University of California Press, 1957.
MLA aipamenaSteiner, Peter O., and Robert Dorfman. The Economic Status of the Aged. University of California Press, 1957.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.