"Mathematics" Manual For The 4Th Grade Of Institutions Of General Secondary Education (In 2 Parts) As Part Of A Textbook (Bogdanovich M. "Literary Reading" Textbook For The 4Th Grade Of Institutions Of General Secondary Education (In 2 Parts). Part 1 (Author: Chumarna M.I.) In The Amount Of 4.23 Accounting And Publishing Sheets.