Cita APA (7th ed.)

UNCTAD. (1977). Spices: A survey of the world market. UNCTAD.

Cita Chicago (17th ed.)

UNCTAD. Spices: A Survey of the World Market. Génova: UNCTAD, 1977.

Cita MLA (9th ed.)

UNCTAD. Spices: A Survey of the World Market. UNCTAD, 1977.