Gide, C., & Thugutt, S. Kooperatyzm. Spolem (Warszawa).
Chicago Style (17th ed.) CitationGide, Charles, and Stanislaw Thugutt. Kooperatyzm. Spolem (Warszawa).
MLA (8th ed.) CitationGide, Charles, and Stanislaw Thugutt. Kooperatyzm. Spolem (Warszawa).
Warning: These citations may not always be 100% accurate.