National Science Teachers Association & US Dept. of Energy. (1977). Community workers and the energy they use: Grade 2. The Office.
Цитирование в стиле Чикаго (17-е изд.)National Science Teachers Association и US Dept. of Energy. Community Workers and the Energy They Use: Grade 2. Washington: The Office, 1977.
Цитирование MLA (9-е изд.)National Science Teachers Association и US Dept. of Energy. Community Workers and the Energy They Use: Grade 2. The Office, 1977.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.