Johnson, K. (1980). Evaluating internal control: Concepts, guide-lines, procedues, documentation. Wiley and Sons.
Chicago (17e ed.) BronvermeldingJohnson, Kenneth. Evaluating Internal Control: Concepts, Guide-lines, Procedues, Documentation. Wiley and Sons, 1980.
MLA (9e ed.) BronvermeldingJohnson, Kenneth. Evaluating Internal Control: Concepts, Guide-lines, Procedues, Documentation. Wiley and Sons, 1980.
Let op: Deze citaties zijn niet altijd 100% accuraat.