TY - CPAPER AU - P. Major TI - THE CONCEPT OF SUSTAINABLE DEVELOPMENT IN PROJECTS IMPLEMENTED BY NON-GOVERNMENTAL ORGANIZATIONS IN POLAND - CASE STUDY T2 - 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018 PY - 2018 SP - 1045 EP - 1052 DO - 10.5593/sgemsocial2018/1.5/S05.130 PB - STEF92 Technology ER -