Παραπομπή APA

Croner, U. (1950). How to export goods/2e (2nd ed.). Sir Isaac pitman.

Παραπομπή Chicago Style

Croner, U.H.E. How to Export Goods/2e. 2nd ed. London: Sir Isaac pitman, 1950.

Παραπομπή MLA

Croner, U.H.E. How to Export Goods/2e. 2nd ed. Sir Isaac pitman, 1950.