Black, D. P. (1989). Tracing a Health Centre's History.
Citação norma ChicagoBlack, Douglas P. Tracing a Health Centre's History. 1989.
ציטוט MLABlack, Douglas P. Tracing a Health Centre's History. 1989.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.