APA (7e ed.) Bronvermelding

JOHNSTON ROBERT B. (1998). TRADING SYSTEMS AND ELECTRONIC COMMERCE. ERUDITIONS PUB.

Chicago (17e ed.) Bronvermelding

JOHNSTON ROBERT B. TRADING SYSTEMS AND ELECTRONIC COMMERCE. AUSTRALIA: ERUDITIONS PUB, 1998.

MLA (9e ed.) Bronvermelding

JOHNSTON ROBERT B. TRADING SYSTEMS AND ELECTRONIC COMMERCE. ERUDITIONS PUB, 1998.

Let op: Deze citaties zijn niet altijd 100% accuraat.