1. W. Farr, Influence of marriage on the mortality of the French people (12 p.), in: Transactions of the National Association for the Promotion of Social Science 1858–1859, 1859, pp. 504–520. The paper was republished in 1975 in Vital statistics, a memorial volume of selections from reports and writings of William Farr. Scarecrow Press, Methuen (New York).
2. Article Mariage;Bertillon,1872
3. Accuracy of data on population characteristics as measured by CPS-census match, 1960. Series ER 60, No. 5. Bureau of the Census. US Government Printing Office, Washington DC.
4. Les célibataires, les veufs et les divorcés, au point de vue du mariage. [Inclination to marriage respectively of bachelors, widowers and divorced persons.];Bertillon;Rev. Sci. Fr. Etranger,1879
5. Article France;Bertillon,1879