Cita APA (7a ed.)

International Trade Centre UNCTAD/GATT. (1975). Trade information classification. The Centre.

Cita Chicago Style (17a ed.)

International Trade Centre UNCTAD/GATT. Trade Information Classification. Geneva: The Centre, 1975.

Cita MLA (9a ed.)

International Trade Centre UNCTAD/GATT. Trade Information Classification. The Centre, 1975.