APA (7th ed.) Citation

Butterfield, C. (2015). United States and México: Commerce, trade, and postal facilities between tha two countries.

Chicago Style (17th ed.) Citation

Butterfield, Carlos. United States and México: Commerce, Trade, and Postal Facilities Between Tha Two Countries. 2015.

MLA (9th ed.) Citation

Butterfield, Carlos. United States and México: Commerce, Trade, and Postal Facilities Between Tha Two Countries. 2015.

Warning: These citations may not always be 100% accurate.