Cita APA

Barber, H. M. E., & Hayes, J. Y. (1973). Exploring the physical world of children of 5-9. Dent.

Citación estilo Chicago

Barber, H. M. E., and J. Y. Hayes. Exploring the Physical World of Children of 5-9. London: Dent, 1973.

Cita MLA

Barber, H. M. E., and J. Y. Hayes. Exploring the Physical World of Children of 5-9. Dent, 1973.