R. Gilbert (Gilbert, R.)

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  Function Theoretic Methods in Differential Equations
  by Robert P. Gilbert, N.I. Muskhelishvili, R. J. Weinacht
  Hardcover, Pitman Pub, ISBN 0273003062 (0-273-00306-2)
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  Hospitals and the State
  by R. Gilbert
  Hardcover, Taylor & Francis Group, ISBN 0850000106 (0-85000-010-6)
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  House Plants Anyone Can Grow, 200
  by R. Gilbert
  Hardcover, Reader's Digest, ISBN 0864380518 (0-86438-051-8)
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  Magical Mason
  by R. Gilbert
  Softcover, Aquarian Pr, ISBN 0850303737 (0-85030-373-7)