Esbozo de relaciones humanes.
Publisher: P. Fernández
Published: 1957
Place of publication: Habana
Language: spa
Number of pages: 153
Subjects: Children -- Conduct of life.
Other titles: Educación popular.
Notes: At head of title: Educación popular; libro del hogar, de la escuela y de la sociedad.
Originally issued as leaflets entitled Boletines de educación popular.