The books of the fairs :
materials about world's fairs, 1834-1916, in the Smithsonian Institution Libraries /
with an introductory essay by Robert W. Rydell.
APA Citation
Smithsonian Institution. Libraries., Rydell, R. W. (1992). The books of the fairs: materials about world's fairs, 1834-1916, in the Smithsonian Institution Libraries. Chicago: American Library Association.
MLA Citation
Smithsonian Institution. Libraries, and Robert W Rydell. The Books of the Fairs: Materials About World's Fairs, 1834-1916, In the Smithsonian Institution Libraries. Chicago: American Library Association, 1992.
Warning: These citations may not always be complete (especially for serials).