Wilhelm, L. (1981). Hazards of Hustling: By Lambert Wilhelm. Greenleaf Classics.
Chicago-Zitierstil (17. Ausg.)Wilhelm, Lambert. Hazards of Hustling: By Lambert Wilhelm. San Diego, Calif: Greenleaf Classics, 1981.
MLA-Zitierstil (8. Ausg.)Wilhelm, Lambert. Hazards of Hustling: By Lambert Wilhelm. Greenleaf Classics, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.