Architects, 6. R. I. o. B. (1971). Conditions of engagement. London.
Chicagoスタイル(17版)引用形式Architects, 6682 Royal Institute of British. Conditions of Engagement. London, 1971.
MLA(9版)引用形式Architects, 6682 Royal Institute of British. Conditions of Engagement. London, 1971.
警告: この引用は必ずしも正確ではありません.