Heisenberg, W. (1974). Across the frontiers ([1st ed.].). Harper and Row.
Lua i Stíl Chicago (17ú heag.)Heisenberg, Werner. Across the Frontiers. [1st ed.]. New York: Harper and Row, 1974.
Lua MLA (9ú heag.)Heisenberg, Werner. Across the Frontiers. [1st ed.]. Harper and Row, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.