Downey, D. B., Powell, B., Steelman, L. C., & Pribesh, S. (1999). Much ado about siblings: Change models, sibship size, and intellectual development. American sociological review, 64(2), 193-198.
Chicago Style (17th ed.) CitationDowney, Douglas B., Brian Powell, Lala Carr Steelman, and Shana Pribesh. "Much Ado About Siblings: Change Models, Sibship Size, and Intellectual Development." American Sociological Review 64, no. 2 (1999): 193-198.
MLA (9th ed.) CitationDowney, Douglas B., et al. "Much Ado About Siblings: Change Models, Sibship Size, and Intellectual Development." American Sociological Review, vol. 64, no. 2, 1999, pp. 193-198.
Warning: These citations may not always be 100% accurate.