| The cultivation of berried fruit
in Great Britain., History, varieties, culture & deseases C.H.Oldham
pp 374 hc London,1946 |
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| Raspberry varieties, rasbeschrijvingen
nr 2 J.A.Leemans, E.T.Nanninga pp 140 pb IVT Wageningen, 1957 |
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The strawberry into the 21st century
A.Dale, J.J.Luby (ed.) pp 288 hc st A4 Timber Press, Portland, 1990
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