Welsh, R. P. (1998). Piet Mondrian: Robert P. Welsh. Prestel.
Chicagoスタイル(17版)引用形式Welsh, Robert P. Piet Mondrian: Robert P. Welsh. München [u.a.]: Prestel, 1998.
MLA(8版)引用形式Welsh, Robert P. Piet Mondrian: Robert P. Welsh. Prestel, 1998.
警告: この引用は必ずしも正確ではありません.