Richardson, J. H., & Peterson, R. V. (1974). Systematic materials analysis. Academic Press. https://doi.org/10.1016/B978-0-12-587801-2.X5001-0
Lua i Stíl Chicago (17ú heag.)Richardson, James H., agus Ronald V. Peterson. Systematic Materials Analysis. New York: Academic Press, 1974. https://doi.org/10.1016/B978-0-12-587801-2.X5001-0.
Lua MLA (9ú heag.)Richardson, James H., agus Ronald V. Peterson. Systematic Materials Analysis. Academic Press, 1974. https://doi.org/10.1016/B978-0-12-587801-2.X5001-0.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.