Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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