Institute of petroleum:Inspection and testing of protective instrumentation systems / (print resources) - London : Heyden on behalf of the Institute of Petroleum, c1980 - viii, 11 p ; 31 cm ISBN: 0855016604 Source: B-16039 Nat. Bib. No.: GB 83-666 Subjects--Topical Terms: Chemical plants--Inspection--Safety measures LC Class. No.: TN870 / .I57 1980