APA (7e ed.) Bronvermelding

Geissler, E. S. (1969). There is a season: A search for meaning. Ave Maria Press.

Chicago (17e ed.) Bronvermelding

Geissler, Eugene S. There Is a Season: A Search for Meaning. Notre Dame, Ind.: Ave Maria Press, 1969.

MLA (8e ed.) Bronvermelding

Geissler, Eugene S. There Is a Season: A Search for Meaning. Ave Maria Press, 1969.