\documentclass [a4paper]{article}
\usepackage [T1] {fontenc} 
\usepackage [utf8] {inputenc} 
\usepackage [english, russian] {babel}
\usepackage [style = gost-numeric, autolang = other, defernumbers] {biblatex}
\addbibresource {bibl.bib}

\DeclareBibliographyCategory {book}
\DeclareBibliographyCategory {mvbook}
%....

\defbibheading {book} {\section* {Книги}}
\defbibheading {mvbook} {\section* {Многотомные книги}}
%....

\addtocategory{book}{MARUZE:1,PETROSYAN:2, STEINS:3, ENDRUYS:4}
\addtocategory{mvbook}{BORCEUX:5}
%....

\begin{document}

\nocite {*}

\bibbycategory

\end{document}