a Ridley, John
\a Safety at Work \h [Text] \b by John Rdley - \a New Delhi: \b Prentice-Hall of India, \c 2010. - \a xiii,490.: \b ill.
\a Includes index \a Note: p.468-472
\a 8120328809
\b Engineering Technology
\a T 55.S2 Rid / \b 495515
\a Safety at Work \h [Text] \b by John Rdley - \a New Delhi: \b Prentice-Hall of India, \c 2010. - \a xiii,490.: \b ill.
\a Includes index \a Note: p.468-472
\a 8120328809
\b Engineering Technology
\a T 55.S2 Rid / \b 495515