Cita APA (7a ed.)

Guo, G., & VanWey, L. K. (1999). The effects of closely spaced and widely spaced sibship size on intellectual development. American sociological review, 64(2), 199-206.

Cita Chicago Style (17a ed.)

Guo, Guang, y Leah K. VanWey. "The Effects of Closely Spaced and Widely Spaced Sibship Size on Intellectual Development." American Sociological Review 64, no. 2 (1999): 199-206.

Cita MLA (8a ed.)

Guo, Guang, y Leah K. VanWey. "The Effects of Closely Spaced and Widely Spaced Sibship Size on Intellectual Development." American Sociological Review, vol. 64, no. 2, 1999, pp. 199-206.