Cita APA (7a ed.)

Armstrong, R. A. (1966). Primary and secondary precepts in Thomistic natural law teaching. Martinus Nijhoff.

Cita Chicago Style (17a ed.)

Armstrong, R. A. Primary and Secondary Precepts in Thomistic Natural Law Teaching. The Hague: Martinus Nijhoff, 1966.

Cita MLA (9a ed.)

Armstrong, R. A. Primary and Secondary Precepts in Thomistic Natural Law Teaching. Martinus Nijhoff, 1966.