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Letters to Mary: The Story of Helen Hayes by Betty E. Biringer
Letters to Mary: The Story of Helen Hayes
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Betty E. Biringer

Letters to Mary: The Story of Helen Hayes

Betty E. Biringer

343 pages • hardcover • 2013

nonfiction computer science politics challenging informative medium-paced
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Critical Infrastructure System Security and Resiliency by Eric Vugrin, Betty Biringer, Drake Warren

Critical Infrastructure System Security and Resiliency

Eric Vugrin, Betty Biringer, Drake Warren

229 pages • hardcover

nonfiction computer science politics challenging informative medium-paced