APA (7th ed.) Citation

Valde-Nowak, P. Professor Krzysztof Sobczyk has passed away. Polish Academy of Arts and Sciences.

Chicago Style (17th ed.) Citation

Valde-Nowak, Paweł. Professor Krzysztof Sobczyk Has Passed Away. Polish Academy of Arts and Sciences.

MLA (9th ed.) Citation

Valde-Nowak, Paweł. Professor Krzysztof Sobczyk Has Passed Away. Polish Academy of Arts and Sciences.

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