APA

Cornelius W. a., Martin P. L., .The uncertain connection : Free trade and rural mexican migration to the United States. : .

Chicago

Cornelius W a, Martin P L, .The uncertain connection : Free trade and rural mexican migration to the United States. : .

Harvard

Cornelius W. a., Martin P. L., .The uncertain connection : Free trade and rural mexican migration to the United States. : .

MLA

Cornelius W a, Martin P L, .: . .