Geissler, E. S. (1969). There is a season: A search for meaning. Ave Maria Press.
Lua i Stíl Chicago (17ú heag.)Geissler, Eugene S. There Is a Season: A Search for Meaning. Notre Dame, Ind.: Ave Maria Press, 1969.
Lua MLA (8ú heag.)Geissler, Eugene S. There Is a Season: A Search for Meaning. Ave Maria Press, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.