ISBN 5211053842 books & textbook
Chemistry 21 st century. International Mendeleev Chemistry Olympiad. (English) / Khimiya 21 veka. Mezhdunarodnye Mendeleevskie olimpiady shkolnikov po khimii. (na angliyskom yazyke)
Lunin V.V., Nenajenko V.G., Ruznova O.N.
URSS / Paperback
isbn-10: 5211053842 / isbn-13: 9785211053847
