Josephs, R. (1958). Streamlining: Your executive workload. Prentice hall.
Chicago Style aipamenaJosephs, Ray. Streamlining: Your Executive Workload. New Jersey: Prentice hall, 1958.
MLA aipamenaJosephs, Ray. Streamlining: Your Executive Workload. Prentice hall, 1958.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.