Marshall editions Developments Ltd, Stewart, R., Jones, R., Gould, D., Mason, A., & Hawkes, N. (1997). Ideas that shaped our world: Great concepts of then and now. Thunder Bay Press.
Lua i Stíl Chicago (17ú heag.)Marshall editions Developments Ltd, Robert Stewart, Roger Jones, David Gould, Antony Mason, agus Nigel Hawkes. Ideas That Shaped Our World: Great Concepts of Then and Now. San Diego, CA: Thunder Bay Press, 1997.
Lua MLA (9ú heag.)Marshall editions Developments Ltd, et al. Ideas That Shaped Our World: Great Concepts of Then and Now. Thunder Bay Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.