MLA

Encoded Archival Description Tag Library : Version 1.0. Chicago, Ill.: Society of American Archivists, 1998.

APA

(1998). Encoded archival description tag library : version 1.0. Chicago, Ill.: Society of American Archivists.

Chicago

Encoded Archival Description Tag Library: Version 1.0. Chicago, Ill.: Society of American Archivists, 1998.