APA (7e ed.) Bronvermelding

Gallagher, O. C., & Moulton, L. B. (1918). Practical business English. Houghton Miffin Company.

Chicago (17e ed.) Bronvermelding

Gallagher, Oscar Charles, en Leonard Bowdoin Moulton. Practical Business English. Boston : New York [etc.]: Houghton Miffin Company, 1918.

MLA (8e ed.) Bronvermelding

Gallagher, Oscar Charles, en Leonard Bowdoin Moulton. Practical Business English. Houghton Miffin Company, 1918.