APA

Chamber of commerce of the United States, . (1959). Import and export bussines. Washington D. C: Chamber of commerce of the United States.

Chicago

Chamber of commerce of the United States, . 1959. Import and export bussines. Washington D. C: Chamber of commerce of the United States.

Harvard

Chamber of commerce of the United States, . (1959). Import and export bussines. Washington D. C: Chamber of commerce of the United States.

MLA

Chamber of commerce of the United States, . Import and export bussines. Washington D. C: Chamber of commerce of the United States. 1959.