(1977). Creating instructional sequences / Ernest Siegel, Rita Siegel.
Chicagoスタイル(17版)引用形式Creating Instructional Sequences / Ernest Siegel, Rita Siegel. 1977.
MLA(9版)引用形式Creating Instructional Sequences / Ernest Siegel, Rita Siegel. 1977.
警告: この引用は必ずしも正確ではありません.