(1971). [National Conference on Cataloguing Standards (Ottawa, May 19-20, 1970].
Chicago Style (17th ed.) Citation[National Conference on Cataloguing Standards (Ottawa, May 19-20, 1970]. 1971.
MLA (9th ed.) Citation[National Conference on Cataloguing Standards (Ottawa, May 19-20, 1970]. 1971.
Warning: These citations may not always be 100% accurate.