Pfeiffer, W. (1980). Walter Pfeiffer (1970-1980). Betzel.
Chicagoスタイル(17版)引用形式Pfeiffer, Walter. Walter Pfeiffer (1970-1980). Frankfurt (Main): Betzel, 1980.
MLA(8版)引用形式Pfeiffer, Walter. Walter Pfeiffer (1970-1980). Betzel, 1980.
警告: この引用は必ずしも正確ではありません.