– "Natural Law." In The Encyclopedia of Democracy, 878-80. Edited by Seymour Martin Lipset. Washington: Congressional Quarterly Press, 1995. Collected Essays vol. 3, 159-64.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
– "Natural Law." In The Encyclopedia of Democracy, 878-80. Edited by Seymour Martin Lipset. Washington: Congressional Quarterly Press, 1995. Collected Essays vol. 3, 159-64.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
– "Natural Law." In The Encyclopedia of Democracy, 878-80. Edited by Seymour Martin Lipset. Washington: Congressional Quarterly Press, 1995. Collected Essays vol. 3, 159-64.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
– "Natural Law." In The Encyclopedia of Democracy, 878-80. Edited by Seymour Martin Lipset. Washington: Congressional Quarterly Press, 1995. Collected Essays vol. 3, 159-64.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.
– "Natural Law." In The Encyclopedia of Democracy, 878-80. Edited by Seymour Martin Lipset. Washington: Congressional Quarterly Press, 1995. Collected Essays vol. 3, 159-64.
– "On the Presumed Medieval Origin of Individual Rights." In Final Causality in Nature and Human Affairs, 86-106. Edited by Richard Hassing. Washington: Catholic University of America Press. Reprinted in Communio 26 (Spring 1999): 55-79. Collected Essays vol. 2, 243-64.