APA (7e ed.) Bronvermelding
Spencer, N. (1985). A Text-book of business calculations. Heineman Educational Books.
Chicago (17e ed.) Bronvermelding
Spencer, Norman. A Text-book of Business Calculations. Nairobi: Heineman Educational Books, 1985.
MLA (9e ed.) Bronvermelding
Spencer, Norman. A Text-book of Business Calculations. Heineman Educational Books, 1985.
Let op: Deze citaties zijn niet altijd 100% accuraat.