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Agricultural Council of Denmark
> P H Knudsen
P H Knudsen
title
ISBN-13
(ISBN-10)
year of publication
Agriculture in Denmark
978-87-85O65-43-8
(87-85O65-43-9)
1977
P. H.
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P.K.
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Per H Knudsen
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Per Holm Knudsen
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Povl H Riis-Knudsen
P. H. Kritzinger