Algumas lições de psicologia e pedologia

The Play of Man

Karl Groos

The Mind of the Child, Part II The Development of the Intellect, International Education Series Edited By William T. Harris, Volume IX.

William T. Preyer

Little Masterpieces of Science: Mind

Youth and Sex: Dangers and Safeguards for Girls and Boys

Scharlieb, Mary; Sibly, Frederick Arthur

The Child Under Eight

Murray, E. R. (Elsie Riach); Smith, Henrietta Brown

Psychology and parenthood

H. Addington Bruce