Cita APA

Pickett, L. H., & Boren, D. (1923). Early childhood education. World book company.

Citación estilo Chicago

Pickett, Lalla H., and Duralde Boren. Early Childhood Education. Yonkers-on-Hudson, N. Y.: World book company, 1923.

Cita MLA

Pickett, Lalla H., and Duralde Boren. Early Childhood Education. World book company, 1923.