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Helen L. (Helen Laura) Sumner
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Helen L. (Helen Laura) Sumner — Books & Biography | Menrva Books | MenrvaBooks
![Labor Problems [microform] A Text Book](/_next/image?url=https%3A%2F%2Fstorage.googleapis.com%2Fmenrva_img_storage%2Fcovers%2F9781013372933_e914e1ec.jpg&w=3840&q=80)