Historical Demography Louis Henry In: "Daedalus". Vol 97. Pp 385-396. 1968 demographic history fields of research methodology quantitative history
The Importance and Quality of the Data in Historical Demography T. H Hollingsworth In: "Daedalus". Vol 97. Pp 415-432. 1968 demographic history fields of research quantitative history
The Verification of Data in Historical Demography Louis Henry In: "Population Studies". Vol 22. Pp 61-81. 1968 demographic history fields of research methodology quantitative history