APA ציטוט

Nicholson, D. N., & Keay, A. J. (1957). Mongolism in Both of Twins of Opposite Sex.

Citação norma Chicago

Nicholson, Douglas N., and Alex. J. Keay. Mongolism in Both of Twins of Opposite Sex. 1957.

ציטוט MLA

Nicholson, Douglas N., and Alex. J. Keay. Mongolism in Both of Twins of Opposite Sex. 1957.