Cita APA (7a ed.)
Lorton, J. W., & Walley, B. L. (1979). Introduction to early childhood education.
Cita estilo Chicago (17a ed.)
Lorton, John W., y Bertha L. Walley. Introduction to Early Childhood Education. 1979.
Cita MLA (9a ed.)
Lorton, John W., y Bertha L. Walley. Introduction to Early Childhood Education. 1979.
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