APA (7th ed.) Citation

(1981). Hydrogen energy. Hemisphere Publ. Corp. (u.a.).

Chicago Style (17th ed.) Citation

Hydrogen Energy. Washington (u.a.): Hemisphere Publ. Corp. (u.a.), 1981.

MLA (9th ed.) Citation

Hydrogen Energy. Hemisphere Publ. Corp. (u.a.), 1981.

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