Eminger, Z. . .., & Kuslev, V. . .. (1957). Cost tools (1.). Artia-Prague.
Chicago Style aipamenaEminger, Z ., and V. Kuslev. Cost Tools. 1. : Artia-Prague, 1957.
MLA aipamenaEminger, Z ., and V. Kuslev. Cost Tools. 1. Artia-Prague, 1957.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.