Youth. The years from ten to Sixteen. /

Eitemau Tebyg

• First five years of life: a guide to the study of the pre-school child
  gan: Gesell, Arnold
• The First Five Years Of Life
  gan: Gesell, Arnold, Ed
  Cyhoeddwyd: (1971)
• Infant and child in the culture of today : Guidance of development in home and nursery school /
  gan: Gesell, Arnold
• Embryology of behaviour, the beginners of the human mind /
  gan: Gesell, Arnold And
• Child development: An introduction to the study of human growth/
  gan: Gesell, Arnold
  Cyhoeddwyd: (1919)