APA (7th ed.) Citation

Phelps, G. (1929). Netherland East Indies market for coin controlled and coin handling machines. [publisher not identified].

Chicago Style (17th ed.) Citation

Phelps, Gordon. Netherland East Indies Market for Coin Controlled and Coin Handling Machines. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

Phelps, Gordon. Netherland East Indies Market for Coin Controlled and Coin Handling Machines. [publisher not identified], 1929.