Παραπομπή APA

Wells, R. (1994). Girl or boy: Choose the sex of your baby 1994. UBS Publishers Distributers.

Παραπομπή Chicago Style

Wells, Ronald. Girl or Boy: Choose the Sex of Your Baby 1994. New Delhi: UBS Publishers Distributers, 1994.

Παραπομπή MLA

Wells, Ronald. Girl or Boy: Choose the Sex of Your Baby 1994. UBS Publishers Distributers, 1994.