TY - CPAPER AU - Krzysztof Kubasik TI - LEGAL NATURE OF CONTRACTS FOR SERVICES WHICH HAVE NOT BEEN REGULATED BY OTHER PROVISIONS – ACCORDING TO POLISH CIVIL LAW T2 - 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018 PY - 2018 SP - 639 EP - 646 DO - 10.5593/sgemsocial2018/1.2/S02.084 PB - STEF92 Technology ER -