Shoppell, R. W. Descriptive price-list of Shoppell's modern house designs. Co-operative Building Plan Association.
Chicagoスタイル(17版)引用形式Shoppell, R. W. Descriptive Price-list of Shoppell's Modern House Designs. New York: Co-operative Building Plan Association.
MLA(8版)引用形式Shoppell, R. W. Descriptive Price-list of Shoppell's Modern House Designs. Co-operative Building Plan Association.
警告: この引用は必ずしも正確ではありません.