sentences:  He is best known for his work in the field of thermodynamics, particularly in co-authoring the thermodynamics reference book "Thermodynamics and Its Applications" with Mike Modell.He also co-wrote "The Properties of Gases and Liquids," another reference work.He was the editor of the American Institute of Chemical Engineers Journal, AIchE Journal, from 1972 to 1976, and directed the American Institute of Chemical Engineers from 1969 to 1971.