Crusades:
classification schedule, classified listing by call number, alphabetical listing by author or title, chronological listing.

APA Citation

Harvard University. Library. (1965). Crusades: classification schedule, classified listing by call number, alphabetical listing by author or title, chronological listing. Cambridge, Mass..

MLA Citation

Harvard University. Library. Crusades: Classification Schedule, Classified Listing by Call Number, Alphabetical Listing by Author Or Title, Chronological Listing. Cambridge, Mass., 1965.

Warning: These citations may not always be complete (especially for serials).