APA (7th ed.) Citation

Network Technical Architecture Group. (1978). Message delivery system for national library and information service network: General requirements. Library of Congress.

Chicago Style (17th ed.) Citation

Network Technical Architecture Group. Message Delivery System for National Library and Information Service Network: General Requirements. Washington: Library of Congress, 1978.

MLA (9th ed.) Citation

Network Technical Architecture Group. Message Delivery System for National Library and Information Service Network: General Requirements. Library of Congress, 1978.