The New York City infant day care study : a comparative study of licensed group and family infant day care programs and the effects of these programs on children and their families /

"Final report, grant MC-R-360011."

The effects of group composition and work situation upon peer leadership /

"Funded by the Office of Naval Research, Group Psychology Programs, under contract no. N00014-67-A-0181-0013, NR 170-719/7-29-68 (Code 452)."