Não informado. (1970). Egyptian Journal of Physics. National Information and Documentation Centre, Egyptian Physical Society.
Chicagoスタイル(17版)引用形式Não informado. Egyptian Journal of Physics. Cairo: National Information and Documentation Centre, Egyptian Physical Society, 1970.
MLA(8版)引用形式Não informado. Egyptian Journal of Physics. National Information and Documentation Centre, Egyptian Physical Society, 1970.
警告: この引用は必ずしも正確ではありません.