I am trying to use a given bibliography style for my work in biblatex. Everything is fine when the book has only one author, when it's got two I get this:
Novotny, Ivan and Michal Hruska (1998). Biologie cloveka pro gymnazia. Fortuna, Praha. ISBN: 8071684627.
which isn't the format I need. Following my given format, it would be:
Novotny, Ivan and Hruska, Michal (1998). Biologie cloveka pro gymnazia. Fortuna, Praha. ISBN: 8071684627.
or
Novotny, Ivan; Hruska, Michal (1998). Biologie cloveka pro gymnazia. Fortuna, Praha. ISBN: 8071684627.
How can the correct format be achieved?

\DeclareNameAlias{sortname}{family-given}should give you what you want. See also https://tex.stackexchange.com/q/12806/35864. – moewe Dec 02 '19 at 06:57