APA (7th ed.) Citation

Greenup, J. C. (1931). Taxation of foreign agents of Spanish shippers. [publisher not identified].

Chicago Style (17th ed.) Citation

Greenup, Julian C. Taxation of Foreign Agents of Spanish Shippers. Washington, D.C.: [publisher not identified], 1931.

MLA (9th ed.) Citation

Greenup, Julian C. Taxation of Foreign Agents of Spanish Shippers. [publisher not identified], 1931.