APA (7th ed.) Citation

Youngman, E. P. (1932). Mining laws of Poland. [publisher not identified].

Chicago Style (17th ed.) Citation

Youngman, E. P. Mining Laws of Poland. Washington, D.C.: [publisher not identified], 1932.

MLA (9th ed.) Citation

Youngman, E. P. Mining Laws of Poland. [publisher not identified], 1932.