TY  - GEN
AU  - HALPERIN,M
TI  - The use of X2 in testing effect of birth order
PY  - 2003///0501
KW  - Birth Order
KW  - Family
KW  - Humans
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1111/j.1469-1809.1952.tb02502.x
ER  -