Citazione Stile APA (7a Edizione)

American Institute of Chemical Engineers. Center for Chemical Process Safety & American Institute of Chemical Engineers. Center for Chemical Process Safety. (1991). 1991 CCPS/AIChE directory of chemical process safety services. N.Y.

Citazione stile Chigago Style (17a edizione)

American Institute of Chemical Engineers. Center for Chemical Process Safety e American Institute of Chemical Engineers. Center for Chemical Process Safety. 1991 CCPS/AIChE Directory of Chemical Process Safety Services. New York: N.Y, 1991.

Citatione MLA (9a ed.)

American Institute of Chemical Engineers. Center for Chemical Process Safety e American Institute of Chemical Engineers. Center for Chemical Process Safety. 1991 CCPS/AIChE Directory of Chemical Process Safety Services. N.Y, 1991.