BETA LABORATORIES INC. (1980). H.B OF INDUSTRIAL WATER CONDITIONING.
Chicagoスタイル(17版)引用形式BETA LABORATORIES INC. H.B OF INDUSTRIAL WATER CONDITIONING. 1980.
MLA(9版)引用形式BETA LABORATORIES INC. H.B OF INDUSTRIAL WATER CONDITIONING. 1980.
警告: この引用は必ずしも正確ではありません.