MLA

Crawley, Frank, and Brian Tyler. Hazop: Guide to Best Practice, 3rd Edition. Elsevier, 2015.

APA

Crawley, F., & Tyler, B. (2015). HAZOP: Guide to Best Practice, 3rd Edition. Elsevier.

Chicago

Crawley, Frank, and Brian Tyler. HAZOP: Guide to Best Practice, 3rd Edition. : Elsevier, 2015.