APA-ийн эшлэл(7 дахь хэвлэлт)

Library of Congress & Subjet Cataloging Division. (1998). Subject Headings (21th. ed.). The National Bibliographic Service.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Library of Congress ба Subjet Cataloging Division. Subject Headings. 21th. ed. Washington: The National Bibliographic Service, 1998.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Library of Congress ба Subjet Cataloging Division. Subject Headings. 21th. ed. The National Bibliographic Service, 1998.