APA-referens (7:e uppl.)
Ощепкова В. В. The USA: geography, history, education, painting (a reader): The USA: geography, history, education, painting (a reader). НБ СевКавГТУ.
Chicago-referens (17:e uppl.)Ощепкова В. В. The USA: Geography, History, Education, Painting (a Reader): The USA: Geography, History, Education, Painting (a Reader). НБ СевКавГТУ.
MLA-referens (8:e uppl.)Ощепкова В. В. The USA: Geography, History, Education, Painting (a Reader): The USA: Geography, History, Education, Painting (a Reader). НБ СевКавГТУ.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.