Sylov, V. Information Technologies and Regional Market Research. Киiв: Miнiстерсво освiти i науки Украiни и др., 2004 с. 72 - 73, ISBN 966-629-117-7.
Sylov, V. Information Technologies and Regional Market Research. Киiв: Miнiстерсво освiти i науки Украiни и др., 2004 с. 72 - 73, ISBN 966-629-117-7.
Sylov, V. (2004) Information Technologies and Regional Market Research, Киiв: Miнiстерсво освiти i науки Украiни и др. с. 72 - 73, ISBN 966-629-117-7.
Sylov, V. (2004). Information Technologies and Regional Market Research. Киiв: Miнiстерсво освiти i науки Украiни и др., с. 72 - 73.
Sylov V. Information Technologies and Regional Market Research. Киiв: Miнiстерсво освiти i науки Украiни и др.; 2004. p. с. 72 - 73. ISBN: ISBN 966-629-117-7.