Cita APA (7a ed.)

Escalanda, R., & Sellés, J. F. (2015). Leonardo Polo: A brief introduction (2nd corrected edition.). Leonardo Polo Institute of Philosophy.

Cita Chicago Style (17a ed.)

Escalanda, Roderrick, y Juan Fernando Sellés. Leonardo Polo: A Brief Introduction. 2nd corrected edition. South Bend: Leonardo Polo Institute of Philosophy, 2015.

Cita MLA (9a ed.)

Escalanda, Roderrick, y Juan Fernando Sellés. Leonardo Polo: A Brief Introduction. 2nd corrected edition. Leonardo Polo Institute of Philosophy, 2015.