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.
Citace podle Chicago (17th ed.)American Institute of Chemical Engineers. Center for Chemical Process Safety a American Institute of Chemical Engineers. Center for Chemical Process Safety. 1991 CCPS/AIChE Directory of Chemical Process Safety Services. New York: N.Y, 1991.
Citace podle MLA (9th ed.)American Institute of Chemical Engineers. Center for Chemical Process Safety a American Institute of Chemical Engineers. Center for Chemical Process Safety. 1991 CCPS/AIChE Directory of Chemical Process Safety Services. N.Y, 1991.
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