Cita APA

Griffiths, B. (1975). Invisible barriers to invisible trade. New York: Holmes & Meier publisher.

Chicago Style Citation

Griffiths, Brian. Invisible Barriers to Invisible Trade. New York: Holmes & Meier publisher, 1975.

Cita MLA

Griffiths, Brian. Invisible Barriers to Invisible Trade. New York: Holmes & Meier publisher, 1975.

Atenció: Aquestes cites poden no estar 100% correctes.