Não informado. (1965). Foundation Facts. Raymond International, Raymond Concrete Pile Division.
Chicagoスタイル(17版)引用形式Não informado. Foundation Facts. New York: Raymond International, Raymond Concrete Pile Division, 1965.
MLA(8版)引用形式Não informado. Foundation Facts. Raymond International, Raymond Concrete Pile Division, 1965.
警告: この引用は必ずしも正確ではありません.