Cita APA (7a ed.)

Catron, C. E., & Allen, J. (1993). Early childhood curriculum. Merrill [etc.].

Cita Chicago Style (17a ed.)

Catron, Carol Elaine, y Jan Allen. Early Childhood Curriculum. New York [etc.]: Merrill [etc.], 1993.

Cita MLA (9a ed.)

Catron, Carol Elaine, y Jan Allen. Early Childhood Curriculum. Merrill [etc.], 1993.