Smith, J. L. (1966). The Liverworts pallavicinia and symphyogyna and their conducting system. University of California.
Lua i Stíl Chicago (17ú heag.)Smith, James L. The Liverworts Pallavicinia and Symphyogyna and Their Conducting System. Berkley: University of California, 1966.
Lua MLA (9ú heag.)Smith, James L. The Liverworts Pallavicinia and Symphyogyna and Their Conducting System. University of California, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.