Proverochnye raboty po khimii dlya 7-8 klassov
Subtitle: didakticheskii material
By: P.A. Gloriozov, V.L.Ryss.
Contributors: Ryss, V. L.
Edition: Izd. 5-e.
Publisher: Prosveshchenie
Published: 1977
Place of publication: Moskva
Language: rus