Παραπομπή APA

Song, Y., Ma, J., Li, L., Dong, B., Wang, Z., & Agardh, A. (2016). Secular trends for age at spermarche among Chinese boys from 11 ethnic minorities, 1995–2010: A multiple cross-sectional study. BMJ Open.

Παραπομπή Chicago Style

Song, Yi, Jun Ma, Liu-Bai Li, Bin Dong, Zhiqiang Wang, και Anette Agardh. "Secular Trends for Age At Spermarche Among Chinese Boys From 11 Ethnic Minorities, 1995–2010: A Multiple Cross-sectional Study." BMJ Open 2016.

Παραπομπή MLA

Song, Yi, et al. "Secular Trends for Age At Spermarche Among Chinese Boys From 11 Ethnic Minorities, 1995–2010: A Multiple Cross-sectional Study." BMJ Open 2016.

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