Cita APA (7a ed.)

Snyder, F. G., & Hawkes, L. W. N. (1998). International trade and customs law of European Union. Butterworths.

Cita Chicago Style (17a ed.)

Snyder, Francis G., y Leonard W. N. Hawkes. International Trade and Customs Law of European Union. London [etc.]: Butterworths, 1998.

Cita MLA (9a ed.)

Snyder, Francis G., y Leonard W. N. Hawkes. International Trade and Customs Law of European Union. Butterworths, 1998.