APA (7th ed.) Citation

Hood, L., Bloom, L., & Brainerd, C. J. (1979). What, when, and how about why: A longitudinal study of early expressions of causality. Published by the University of Chicago Press for the Society for Research in Child Development.

Chicago Style (17th ed.) Citation

Hood, Lois, Lois Bloom, and Charles J. Brainerd. What, When, and How About Why: A Longitudinal Study of Early Expressions of Causality. Chicago: Published by the University of Chicago Press for the Society for Research in Child Development, 1979.

MLA (9th ed.) Citation

Hood, Lois, et al. What, When, and How About Why: A Longitudinal Study of Early Expressions of Causality. Published by the University of Chicago Press for the Society for Research in Child Development, 1979.