Nizhegorodskiĭ gosudarstvennyĭ pedagogicheskiĭ universitet., Fridman, B. D., & Fridman, B. I. (1997). Priroda Povolzhʹi︠a︡: Mezhvuzovskiĭ sbornik nauchnykh trudov. Nizhniĭ Novgorod : Ann Arbor: NGPU ; distributed by ATC Books International, Inc..
Chicago Style CitationNizhegorodskiĭ gosudarstvennyĭ pedagogicheskiĭ universitet., B. D. Fridman, and B. I. Fridman. Priroda Povolzhʹi︠a︡: Mezhvuzovskiĭ Sbornik Nauchnykh Trudov. Nizhniĭ Novgorod : Ann Arbor: NGPU ; distributed by ATC Books International, Inc., 1997.
MLA CitationNizhegorodskiĭ gosudarstvennyĭ pedagogicheskiĭ universitet., B. D. Fridman, and B. I. Fridman. Priroda Povolzhʹi︠a︡: Mezhvuzovskiĭ Sbornik Nauchnykh Trudov. Nizhniĭ Novgorod : Ann Arbor: NGPU ; distributed by ATC Books International, Inc., 1997.