Die Grundlagen der Sozialpsychologie von Hartley, Eugene Leonard, Hartley, Ruth E. 1910-

Understanding children's play von Hartley, Ruth E. 1910-, Frank, Lawrence K. 1890-1968, Goldenson, Robert M.

Norm compatibility, norm preference, and the acceptance of new reference groups von Hartley, Ruth E. 1910-

Understanding children's play von Hartley, Ruth E. 1910-, Frank, Lawrence K. 1890-1968, Goldenson, Robert M.

Growing through play Experiences of Teddy and Bud von Hartley, Ruth E. 1910-

New play experiences for children planned play groups, miniature life toys, and puppets von Hartley, Ruth E. 1910-, Frank, Lawrence K. 1890-1968, Goldenson, Robert M.

Understanding children's play von Hartley, Ruth E. 1910-, Frank, Lawrence K. 1890-1968, Goldenson, Robert M.

Understanding children's play von Hartley, Ruth E. 1910-, Frank, Lawrence K. 1890-1968, Goldenson, Robert M.

Growing trough play experiences of Teddy and Bud von Hartley, Ruth E. 1910-

Die Grundlagen der Sozialpsychologie von Hartley, Eugene L., Hartley, Ruth E. 1910-

Personal characteristics and acceptance of secondary groups as reference groups von Hartley, Ruth E. 1910-

Understanding children's play von Hartley, Ruth E. 1910-, Frank, Lawrence K. 1890-1968, Goldenson, Robert M.

Growing Through Play Experiences of Teddy and Bud von Hartley, Ruth E.

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Outside readings in psychology von Hartley, Eugene L., Birch, Herbert G., Hartley, Ruth E.

Sociality in preadolescent boys von Hartley, Ruth E. 1910-

The complete book of children's play Introd. by Lawrence K. Frank von Hartley, Ruth E. 1910-, Goldenson, Robert M.

Die Grundlage der Sozialpsychologie von Hartley, Eugene L., Hartley, Ruth E. 1910-

Understanding children's play von Hartley, Ruth E. 1910-, Frank, Lawrence K. 1890-1968, Goldenson, Robert M.

The importance and nature of communication von Hartley, Eugene Leonard 1912-, Hartley, Ruth E. 1910-

Die Grundlagen der Sozialpsychologie von Hartley, Eugene Leonard, Hartley, Ruth E. 1910-