APA (7th ed.) Citation

Helble, M., Mann, C., & Wilson, J. S. (2012). Aid for Trade Facilitation.

Chicago Style (17th ed.) Citation

Helble, Matthias, Catherine Mann, and John S. Wilson. Aid for Trade Facilitation. 2012.

MLA (8th ed.) Citation

Helble, Matthias, et al. Aid for Trade Facilitation. 2012.