BLACK, S. (1994). Practical Public Relations Sam Black. Universal Bookshall.
Chicagoスタイル(17版)引用形式BLACK, Sam. Practical Public Relations Sam Black. Universal Bookshall, 1994.
MLA(8版)引用形式BLACK, Sam. Practical Public Relations Sam Black. Universal Bookshall, 1994.
警告: この引用は必ずしも正確ではありません.