APA (7th ed.) Citation

(1931). Die Bergbau-Industrie - 1931, 033.

Chicago Style (17th ed.) Citation

Die Bergbau-Industrie - 1931, 033. 1931.

MLA (8th ed.) Citation

Die Bergbau-Industrie - 1931, 033. 1931.

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