National Safety Council. (1978). Supervisors safety manual: Better production without injury and waste from accidents (5th ed.). National Safety Council.
Чикаго стиль цитування (17-те видання)National Safety Council. Supervisors Safety Manual: Better Production Without Injury and Waste from Accidents. 5th ed. Chicago: National Safety Council, 1978.
Стиль цитування MLA (8-ме видання)National Safety Council. Supervisors Safety Manual: Better Production Without Injury and Waste from Accidents. 5th ed. National Safety Council, 1978.
Попередження: стилі цитування не завжди правильні на всі 100%.