Gaya APA

S, ., ell, E. (1959). Colorimetric Determination of traces of metals. (1959). : New York : Interscience Publishers, Inc.,.

Gaya MLA

S, ., ell, E.B.. "Colorimetric Determination of traces of metals.". 1959 : New York : Interscience Publishers, Inc.,, 1959. Text.