[1]
Kádeková, Z. i Kretter, A. 2012. Marketing of Direct Selling of Agricultural Products. Zeszyty Naukowe SGGW, Polityki Europejskie, Finanse i Marketing. 7(56) (cze. 2012), 38–44. DOI:https://doi.org/10.22630/PEFIM.2012.7.56.4.