TY  - CHAP
A1  - Mace, R.
A1  - Sear, R.
T1  - Are humans cooperative breeders?
Y1  - 2005
A3  - Voland, E.
A3  - Chasiotis, A.
A3  - Schiefenhövel, W.
T2  - Grandmotherhood: The evolutionary significance of the second half of female life
CY  - Rutgers
PB  - University Press

ER  -