Cadbury, B., & Cadbury, G. W. (1963). Telephone Answering Services.
Citação norma ChicagoCadbury, Barbara, and G. W. Cadbury. Telephone Answering Services. 1963.
ציטוט MLACadbury, Barbara, and G. W. Cadbury. Telephone Answering Services. 1963.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.