Ash, I., & Ash, M. (1988). What every chemical technologist want to know about. Chemical Publishing.
Citazione stile Chigago Style (17a edizione)Ash, Irene, e Michael Ash. What Every Chemical Technologist Want to Know About. New York: Chemical Publishing, 1988.
Citatione MLA (9a ed.)Ash, Irene, e Michael Ash. What Every Chemical Technologist Want to Know About. Chemical Publishing, 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.