Gaya APA

Karge, H., Weitkamp, J. (1989). Zeolites as catalysts sorbents and detergent builders . Amsterdam: Elsevier.

Gaya MLA

Karge, H.G.., Weitkamp, J.. "Zeolites as catalysts sorbents and detergent builders". Amsterdam: Elsevier, 1989. Text.