Cita APA (7a ed.)

Conference on Trade and Development. (1990). Trade facilitation: Trade data elements directory : UNTDED 1990. Naciones Unidas.

Cita Chicago Style (17a ed.)

Conference on Trade and Development. Trade Facilitation: Trade Data Elements Directory : UNTDED 1990. Nueva York: Naciones Unidas, 1990.

Cita MLA (9a ed.)

Conference on Trade and Development. Trade Facilitation: Trade Data Elements Directory : UNTDED 1990. Naciones Unidas, 1990.