Markov N. G. Nikolai Grigorevich & Ostrast P.M. (1998). The geoinformation system for WWW. 1998.
Chicagoスタイル(17版)引用形式Markov N. G. Nikolai Grigorevich , Ostrast P.M. The Geoinformation System for WWW. 1998, 1998.
MLA(9版)引用形式Markov N. G. Nikolai Grigorevich , Ostrast P.M. The Geoinformation System for WWW. 1998, 1998.
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