TY  - JOUR
A1  - Hofferth, S.L.
A1  - Anderson, K.G.
T1  - Are all dads equal? Biology versus marriage as a basis for paternal investment
Y1  - 2003
DO  - 10.1111/j.1741-3737.2003.00213.x 
JF  - Journal of Marriage and the Family
VL  - 65
IS  - 1
SP  - 213
EP  - -232

ER  -