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Lebedeva E.V. i Semiryazhko V.A. Matematika.Gotovimsya k GIA i EGE.Uchimsya reshat zadaniya so znakom modulya.Posobie dlya obuchayuschihsya 14g.

Paperback details (USA). ISBN: 978-5-00007-433-6 ISBN-10: 5-00007-433-5 (978-5-00007) · 2014