APA (7th ed.) Citation

Pióro, R., & Smrek, W. (2007). A material witness to crime. Pro memoria.

Chicago Style (17th ed.) Citation

Pióro, Rafał, and Witold Smrek. "A Material Witness to Crime." Pro Memoria 2007.

MLA (8th ed.) Citation

Pióro, Rafał, and Witold Smrek. "A Material Witness to Crime." Pro Memoria, 2007.

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