APA (7th ed.) Citation

(1929). Roadbuilding machinery for Latvia. [publisher not identified].

Chicago Style (17th ed.) Citation

Roadbuilding Machinery for Latvia. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

Roadbuilding Machinery for Latvia. [publisher not identified], 1929.

Warning: These citations may not always be 100% accurate.