(1966). The new health and safety. Chicago: Scott, Foresman and Company.
Trích dẫn kiểu ChicagoThe New Health and Safety. Chicago: Scott, Foresman and Company, 1966.
ציטוט MLAThe New Health and Safety. Chicago: Scott, Foresman and Company, 1966.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.