Decline in age at menarche among Spanish women born from 1925 to 1962.

MLA

Cabanes, Anna, et al. “Decline in Age at Menarche among Spanish Women Born from 1925 to 1962.” BMC Public Health, vol. 9, no. 1, Jan. 2009, pp. 449–55. EBSCOhost, https://doi.org/10.1186/1471-2458-9-449.

APA

Cabanes, A., Ascunce, N., Vidal, E., Ederra, M., Barcos, A., Erdozain, N., Lope, V., & Pollán, M. (2009). Decline in age at menarche among Spanish women born from 1925 to 1962. BMC Public Health, 9(1), 449–455. https://doi.org/10.1186/1471-2458-9-449

Chicago

Cabanes, Anna, Nieves Ascunce, Enrique Vidal, María Ederra, Ana Barcos, Nieves Erdozain, Virginia Lope, and Marina Pollán. 2009. “Decline in Age at Menarche among Spanish Women Born from 1925 to 1962.” BMC Public Health 9 (1): 449–55. doi:10.1186/1471-2458-9-449.