The Walker Washington Guide 1991, EPM Publications

ISBN-13: 9780939009541

8th Rev edition

Trade paperback

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The Walker Washington Guide 1989, EPM Publications

ISBN-13: 9780939009220

7th Completely Rev edition

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The Walker Washington guide 1980, Guide Press, Bethesda, Md.

ISBN-13: 9780915472024

Rev

Softcover

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The Walker Washington guide 1975, Guide Press, Bethesda, Md.

ISBN-13: 9780915472017

Bicentennial rev Select