APA (7th ed.) Citation

Keller, W. E. (1969). Helium-3 and helium-4. Plenum Pr.

Chicago Style (17th ed.) Citation

Keller, William E. Helium-3 and Helium-4. New York: Plenum Pr, 1969.

MLA (9th ed.) Citation

Keller, William E. Helium-3 and Helium-4. Plenum Pr, 1969.

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