Kopp, S. B. (1978). An end to innocence: Facing life without illusions. Macmillan.
Chicago Style aipamenaKopp, Sheldon B. An End to Innocence: Facing Life Without Illusions. New York: Macmillan, 1978.
MLA aipamenaKopp, Sheldon B. An End to Innocence: Facing Life Without Illusions. Macmillan, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.