Columbia subject headings:
Gutenberg, Johann, 1397?-1468.
Incunabula--Facsimiles.
Harvard subject headings:
Gutenberg, Johann, 1397?-1468.
Incunabula--Facsimiles.
Princeton subject headings:
Facsimiles.
Gutenberg, Johann, 1397?-1468.
Incunabula--Facsimiles.