Források: FSZEK katalógus,
Academic Search Complete,
Britannica Online,
eBook Academic Collection (EBSCOhost),
European Views of the Americas: 1493 to 1750,
Europeana,
Gale Virtual Reference Library,
GreenFILE,
Grove Art Online,
Grove Music Online,
JSTOR Journals,
Library, Information Science & Technology Abstracts,
Literature Resource Center,
PsycARTICLES,
RILM Abstracts of Music Literature,
Scribner Writers Online,
SocINDEX with Full Text,
Twayne's Authors Online
