APA (7th ed.) Zitazioa

(1920). Operating expenses in retail shoe stores in 1919.

Chicago Style (17th ed.) Zitazioa

Operating Expenses in Retail Shoe Stores in 1919. 1920.

MLA (9th ed.) Zitazioa

Operating Expenses in Retail Shoe Stores in 1919. 1920.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.