Lessing, D. (1971). Briefing for a descent into hell. Flamingo.
Chicago Style (17th ed.) ZitazioaLessing, Doris. Briefing for a Descent into Hell. London: Flamingo, 1971.
MLA (9th ed.) ZitazioaLessing, Doris. Briefing for a Descent into Hell. Flamingo, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.