Stevens, George H.

The manufacture of synthetic phenol from benzol by sulphonation : synthetic phenon carbolic acid, its uses, the raw materialsa and the neccessary apparatus and equiment for its production on a commercial basis / George H. Stevens - Newark : Geo. H. Stevens, 1916 - 85 p. : front. fold. tables. ill.. ; 22 cm.


Ibn Khallikans--Biographical--Dictionaries

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