Dyfyniad APA

NORTH KLAUS. (1992). ENVIRONMENTAL BUSINESS MANAGEMENT. INTERNATIONAL LABOUR ORGANIZATION.

Dyfyniad Arddull Chicago

NORTH KLAUS. ENVIRONMENTAL BUSINESS MANAGEMENT. GENEVA: INTERNATIONAL LABOUR ORGANIZATION, 1992.

Dyfyniad MLA

NORTH KLAUS. ENVIRONMENTAL BUSINESS MANAGEMENT. INTERNATIONAL LABOUR ORGANIZATION, 1992.

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