There are dozens of Reference books and sets available electronically on campus or off-campus.
For clusters of titles, often searchable with one query, see compilation databases like:
Subjects: MANY
Description: General e-book collection containing full text.
Contents: E-books; Bibliographies
Subjects: MANY
Description: General e-book collection from Gale Cengage Learning containing full text.
Contents: eBooks; Encyclopedias.
Subjects: MANY
Description: General encyclopedia containing full text.
Contents: E-books; Encyclopedias
Portrait of Dante
Sandro Botticelli, 1444–1510
Credit: Wikipedia Commons