AAPI Heritage Month

Join the Goodreads Author Program

Are you W. Herman de Groot, author of the books below?
Sulphonation Technology in the Detergent Industry by W. Herman de Groot Sulphonation Technology in the Detergent Industry by W. Herman de Groot The Manufacture of Modern Detergent Powders by W. Herman de Groot


To join the author program as W. Herman de Groot, you will first need to sign in to Goodreads. Then navigate back to this page to apply.


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