APA (7th ed.) Citation

Keller, G. E. (1987). Separations, new directions for an old field. American Institute of Chemical Engineers.

Chicago Style (17th ed.) Citation

Keller, George E. Separations, New Directions for an Old Field. New York, N.Y.: American Institute of Chemical Engineers, 1987.

MLA (9th ed.) Citation

Keller, George E. Separations, New Directions for an Old Field. American Institute of Chemical Engineers, 1987.