Stokes, M. A., & Smiley, T. L. (1968). An introduction to tree-ring dating. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Stokes, Marvin A., agus Terah L. Smiley. An Introduction to Tree-ring Dating. Chicago: University of Chicago Press, 1968.
Lua MLA (9ú heag.)Stokes, Marvin A., agus Terah L. Smiley. An Introduction to Tree-ring Dating. University of Chicago Press, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.