APA Citation

(1930). Exhibit of books printed during the XV century and known as incunabula. Washington: U.S. Govt. Print. Off..

Chicago Style Citation

Exhibit of Books Printed During the XV Century and Known As Incunabula. Washington: U.S. Govt. Print. Off., 1930.

MLA Citation

Exhibit of Books Printed During the XV Century and Known As Incunabula. Washington: U.S. Govt. Print. Off., 1930.

Warning: These citations may not always be 100% accurate.