Van Olphen, H. (1982). International clay conference. New York.
Chicagoスタイル(17版)引用形式Van Olphen, H. International Clay Conference. Amsterdam: New York, 1982.
MLA(9版)引用形式Van Olphen, H. International Clay Conference. New York, 1982.
警告: この引用は必ずしも正確ではありません.