Não informado. (1975). Bulletin of the Natural History Research Center. University of Baghdad.
Chicagoスタイル(17版)引用形式Não informado. Bulletin of the Natural History Research Center. Baghdad: University of Baghdad, 1975.
MLA(8版)引用形式Não informado. Bulletin of the Natural History Research Center. University of Baghdad, 1975.
警告: この引用は必ずしも正確ではありません.