@inbook{Wahl1992,
author = {Wahl, J.B. },
title= {Trading quantity for quality: Explaining the decline in American fertility in the 19th century},
year = {1992},
editor = {Goldin, C.},
editor = {Rockoff, H. },
booktitle = {Strategic factors in nineteenth-century American economic history},
address = {Chicago},
publisher = {University of Chicago Press},
}