.Parr, E. A., .Parr, E., Bsc, & .Eng, C. (1998). Industrial control handbook. Newnes ; Available in North America from Industrial Press.
Lua i Stíl Chicago (17ú heag.).Parr, E. A., E.A .Parr, Bsc, agus C. .Eng. Industrial Control Handbook. Oxford, England ; Boston : New York: Newnes ; Available in North America from Industrial Press, 1998.
Lua MLA (9ú heag.).Parr, E. A., et al. Industrial Control Handbook. Newnes ; Available in North America from Industrial Press, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.