MLA

Smith, David J, et al. The Safety Critical Systems Handbook : A Straightforward Guide to Functional Safety: Iec 61508 (2010 Edition), Iec 61511 (2015 Edition) and Related Guidance. Saint Louis: Butterworth-Heinemann, 2016.

APA

Smith, D. J, Simpson, K. G. L, Kenneth G. L. Simpson, K. G. L. Simpson, & Simpson, K. GL. (2016). The Safety Critical Systems Handbook : A Straightforward Guide to Functional Safety: IEC 61508 (2010 Edition), IEC 61511 (2015 Edition) and Related Guidance. Saint Louis: Butterworth-Heinemann.

Chicago

Smith, David J., Kenneth G. L Simpson, Kenneth G. L. Simpson, and Kenneth GL Simpson. The Safety Critical Systems Handbook : A Straightforward Guide to Functional Safety: IEC 61508 (2010 Edition), IEC 61511 (2015 Edition) and Related Guidance. Saint Louis: Butterworth-Heinemann, 2016.