APA (7th ed.) Citation

(1981). World energy directory: A guide to org. and research activities in non-atom. energy. Longman.

Chicago Style (17th ed.) Citation

World Energy Directory: A Guide to Org. and Research Activities in Non-atom. Energy. Harlow: Longman, 1981.

MLA (9th ed.) Citation

World Energy Directory: A Guide to Org. and Research Activities in Non-atom. Energy. Longman, 1981.