APA (7e ed.) Bronvermelding
Sigband, N. B. (1981). Communicating in business. Scott, Foreman and Company.
Chicago (17e ed.) Bronvermelding
Sigband, Norman B. Communicating in Business. Illinois: Scott, Foreman and Company, 1981.
MLA (9e ed.) Bronvermelding
Sigband, Norman B. Communicating in Business. Scott, Foreman and Company, 1981.
Let op: Deze citaties zijn niet altijd 100% accuraat.