@inbook{Kamata2012,
author = {Kamata, K.},
title= {Zenkoku kazoku chosa wo mochiita bunseki: Konzen ninshin shussho no shakai keizaiteki yoin [An analysis based on National Family Research of Japan: Socio-economic factors in premarital pregnancy]},
year = {2012},
editor = {Anzo, S.},
editor = {Kojima, H.},
booktitle = {Mikuro deta no keiryo jinkogaku [Demographic analysis of microdata]},
address = {Tokyo},
publisher = {Hara Shobo},
pages = {67‒91},
}