APA (7th ed.) Citation

Hatsopoulos, G. N., & Gyftopoulos, E. P. (1973). Thermionic energy conversion. MIT Press.

Chicago Style (17th ed.) Citation

Hatsopoulos, G. N., and E. P. Gyftopoulos. Thermionic Energy Conversion. Cambridge: MIT Press, 1973.

MLA (9th ed.) Citation

Hatsopoulos, G. N., and E. P. Gyftopoulos. Thermionic Energy Conversion. MIT Press, 1973.