Penelope Leach

发表

Penelope Leach, 1977 .

Your Baby and Child: From Birth to Age Five

Penelope Leach, P. Leach, 1978 .

The quality of different types of child care at 10 and 18 months: a comparison between types and factors related to quality

Kathy Sylva, Jacqueline Barnes, Alan Stein, 2008 .

Penelope Leach, 1979 .