TY  - BOOK
AU  - McGraw,Myrtle Byram
TI  - Growth: a study of Johnny and Jimmy 
SN  - 0405064713
PY  - 1975///
CY  - New York
PB  - Arno Press
KW  - Infant psychology
KW  - Infants
KW  - Growth
KW  - Twins
N1  - Reprint of the ed. published by D. Appleton-Century, New York, in series: TheCentury psychology series
ER  -