SAVTSOVA, Natalya Aleksandrovna et al. Tourism Services Contract in Russia and the United States. Journal of Environmental Management and Tourism, [S.l.], v. 10, n. 6, p. 1253-1258, dec. 2019. ISSN 2068-7729. Available at: <https://journals.aserspublishing.eu/jemt/article/view/4193>. Date accessed: 02 may 2024. doi: https://doi.org/10.14505//jemt.v10.6(38).07.