APA (7th ed.) Citation

Kowalczyk, A., Rubin, H., Rubin, K., & Witkowski, A. J. Chemical waste disposal site as a source of groundwater contamination in the multi-Aquifer system of Upper Silesia, Poland.

Chicago Style (17th ed.) Citation

Kowalczyk, Andrzej, Hanna Rubin, Krystyn Rubin, and Andrzej Jarosław Witkowski. Chemical Waste Disposal Site as a Source of Groundwater Contamination in the Multi-Aquifer System of Upper Silesia, Poland.

MLA (9th ed.) Citation

Kowalczyk, Andrzej, et al. Chemical Waste Disposal Site as a Source of Groundwater Contamination in the Multi-Aquifer System of Upper Silesia, Poland.

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