Multiple versions of the textbook are available for free through educational archives and digital libraries: Геометрия по Киселёву - Anton Petrunin
The textbook by Andrey Petrovich Kiselev is widely considered the "gold standard" of geometry education in the Russian-speaking world. First published in 1892 , it remained the primary stable textbook for Soviet schools until the mid-1950s (and even longer for solid geometry) due to its exceptional precision, simplicity, and conciseness. Direct Download Links (PDF/DJVU) geometriia kiselev skachat v pdf