Pickard, R. (1996). Conservation in the built environment. Longman.
Chicagoスタイル(17版)引用形式Pickard, Robert. Conservation in the Built Environment. Harlow, Essex: Longman, 1996.
MLA(9版)引用形式Pickard, Robert. Conservation in the Built Environment. Longman, 1996.
警告: この引用は必ずしも正確ではありません.