· HAYßS, Norvel How to triumph over siclmess / by Norvel Hayes. — Tulsa , Oklahoma : Harri—...
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· HAYßS, Norvel How to triumph over siclmess / by Norvel Hayes. — Tulsa , Oklahoma : Harri— son House, 1982. — 64 18 ISBN 0—89274-702-1. 231.73 199/ Stitnta infona#ie£