Não informado. (1976). Comments on astrophysics. Gordon and Breach.
Chicagoスタイル(17版)引用形式Não informado. Comments on Astrophysics. New York: Gordon and Breach, 1976.
MLA(8版)引用形式Não informado. Comments on Astrophysics. Gordon and Breach, 1976.
警告: この引用は必ずしも正確ではありません.