APA (7th ed.) Citation

Happel, J. (1958). Chemical process economics / by J. Happel. Wiley.

Chicago Style (17th ed.) Citation

Happel, J. Chemical Process Economics / by J. Happel. Wiley, 1958.

MLA (9th ed.) Citation

Happel, J. Chemical Process Economics / by J. Happel. Wiley, 1958.

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