APA (7th ed.) Citation

International Association for Hydrogen Energy. (1980). Directory of hydrogen energy products and services 1980/81. Pergamon.

Chicago Style (17th ed.) Citation

International Association for Hydrogen Energy. Directory of Hydrogen Energy Products and Services 1980/81. New York: Pergamon, 1980.

MLA (9th ed.) Citation

International Association for Hydrogen Energy. Directory of Hydrogen Energy Products and Services 1980/81. Pergamon, 1980.

Warning: These citations may not always be 100% accurate.