McCallum, R. I., Edwards, F. C., & Taylor, P. J. (1990). Fitness for work: The medical aspects. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)McCallum, R. I., F. C. Edwards, agus P. J. Taylor. Fitness for Work: The Medical Aspects. Oxford ; New York: Oxford University Press, 1990.
Lua MLA (8ú heag.)McCallum, R. I., et al. Fitness for Work: The Medical Aspects. Oxford University Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.