Cita APA (7a ed.)

Burkhardt, H., Smith, B., Bochenski, J. M., & Angelelli, I. (1991). Handbook of metaphysics and ontology. Philosophia Verlag.

Cita Chicago Style (17a ed.)

Burkhardt, Hans, Barry Smith, Joseph M. Bochenski, y Ignacio Angelelli. Handbook of Metaphysics and Ontology. Munich [etc.]: Philosophia Verlag, 1991.

Cita MLA (9a ed.)

Burkhardt, Hans, et al. Handbook of Metaphysics and Ontology. Philosophia Verlag, 1991.