DeLillo, D. (1997). Underworld. Scribner.
Chicago Style aipamenaDeLillo, Don. Underworld. New York, NY: Scribner, 1997.
MLA aipamenaDeLillo, Don. Underworld. Scribner, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
DeLillo, D. (1997). Underworld. Scribner.
Chicago Style aipamenaDeLillo, Don. Underworld. New York, NY: Scribner, 1997.
MLA aipamenaDeLillo, Don. Underworld. Scribner, 1997.