Cita APA (7a ed.)

Luijpen, W. A., & Dondeyne, A. (1960). Existential phenomenology. Duquesne University.

Cita Chicago Style (17a ed.)

Luijpen, William A., y Albert Dondeyne. Existential Phenomenology. Louvain: Duquesne University, 1960.

Cita MLA (8a ed.)

Luijpen, William A., y Albert Dondeyne. Existential Phenomenology. Duquesne University, 1960.