Gaya APA

Armego, W, L., Chai, C, L. (2003). Purification of laboratory chemicals (2003). : Amsterdam : Bitterworth Heinemann,.

Gaya MLA

Armego, Wilfred, L.P.., Chai, Christina, L.L. "Purification of laboratory chemicals". 2003 : Amsterdam : Bitterworth Heinemann,, 2003. Text.