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What has the author Valerie Duff written?
Valerie Duff has written: 'To the new world'
What has the author Conover Duff written?
Conover Duff has written: 'The master-knot and \\'
What has the author Oliver Duff written?
Oliver Duff has written: 'New Zealand now'
What has the author J T Duff written?
J T. Duff has written: 'Bibliography of traffic engineering'
What has the author D V Duff written?
D. V. Duff has written: 'The story of the Merchant Navy'
What has the author A Duff Watson written?
A. Duff Watson has written: 'Self lost in service' -- subject(s): Accessible book
What has the author Ethel M Duff written?
Ethel M. Duff has written: 'The life story of H.R.H. the Duke of Cambridge'
What has the author James Duff Fife written?
James Duff Fife has written: 'Lord Fife and his factor' -- subject(s): History
What has the author Ernest A Duff written?
Ernest A. Duff has written: 'Agrarian reform in Colombia' -- subject(s): Land reform, Law and legislation
What has the author Ailsa M Duff written?
Ailsa M. Duff has written: 'The causation of industrial accidents' -- subject(s): Industrial accidents
What has the author David S Duff written?
David S. Duff has written: 'The life story of H. R. H. Princess Louise'
What has the author E Creighton Duff written?
E. Creighton Duff has written: 'The battle with the Sahara in West Africa' -- subject(s): Deforestation
