APA (7e ed.) Bronvermelding
Level, D. A., & Galle, W. P. (1980). Business communications: Theory and practice. Business Publications.
Chicago (17e ed.) Bronvermelding
Level, Dale A., en William P. Galle. Business Communications: Theory and Practice. Dallas, Tex.: Business Publications, 1980.
MLA (9e ed.) Bronvermelding
Level, Dale A., en William P. Galle. Business Communications: Theory and Practice. Business Publications, 1980.
Let op: Deze citaties zijn niet altijd 100% accuraat.