APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.