Luijpen, W. (1962). Existential phenomenology. Duquesne University Press.
Chicago Style aipamenaLuijpen, W. Existential Phenomenology. Pittsburgh: Duquesne University Press, 1962.
MLA aipamenaLuijpen, W. Existential Phenomenology. Duquesne University Press, 1962.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.