APA (7th ed.) Citation

McKey, J. R. (1929). Latin American trade in explosives: Porto Rico. [publisher not identified].

Chicago Style (17th ed.) Citation

McKey, Joseph Roderick. Latin American Trade in Explosives: Porto Rico. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

McKey, Joseph Roderick. Latin American Trade in Explosives: Porto Rico. [publisher not identified], 1929.