Não informado. (1976). Energy information abstracts. Environment Information Center.
Chicagoスタイル(17版)引用形式Não informado. Energy Information Abstracts. New York: Environment Information Center, 1976.
MLA(8版)引用形式Não informado. Energy Information Abstracts. Environment Information Center, 1976.
警告: この引用は必ずしも正確ではありません.