APA (7e ed.) Bronvermelding

Sladen, E. (1965). Modern commerce; a course in commerce for advanced students (7th ed.). Pitman.

Chicago (17e ed.) Bronvermelding

Sladen, Edward. Modern Commerce; a Course in Commerce for Advanced Students. 7th ed. London: Pitman, 1965.

MLA (9e ed.) Bronvermelding

Sladen, Edward. Modern Commerce; a Course in Commerce for Advanced Students. 7th ed. Pitman, 1965.