APA (7th ed.) Citation

Birke, M., Hindel, R., & Siewers, U. GEOCHEMICAL MAPPING IN GERMANY.

Chicago Style (17th ed.) Citation

Birke, M., R. Hindel, and U. Siewers. GEOCHEMICAL MAPPING IN GERMANY.

MLA (9th ed.) Citation

Birke, M., et al. GEOCHEMICAL MAPPING IN GERMANY.

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