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Physical Description : 59 pp. 22x16; il.

Publication: Madrid : National Institute of Agronomic Research., 1957

Reference INIA: CINIA-002

Other data of interest: Copyright status: copyrighted Copyright notice: © INIA All rights reserved by the legislation on Intellectual Property. Neither all nor part of this book, including the cover design, may be reproduced, stored or transmitted in any way by electronic, chemical, optical, computer, recording or photocopying means, without prior written permission from the editorial.