Link to church inventory: http://www.christoph-www.de/kbsilesia2.html
Online at FamilySearch.org Click on link given above.
Translation:
Note: "Taufen 1831-1834" contains a name register by year beginning on image 331. Some of the index is arranged by place name so check each index.
The book, labeled "Baptism 1832-1840" contains marriages. An index of the bridegrooms begins on image 191. The church chronicle contained therein belongs in truth NOT to Grunberg, but to Waldenburg.
Catalog entry for Zielona Gora [no cross reference to Grunberg, Schlesien - only cataloged under Zielona Gora]: https://www.familysearch.org/search/catalog/2562638?availability=Family%20History%20Library
Ancestry.com: Link to civil records for Grünberg: http://search.ancestry.com/search/db.aspx?dbid=60749&path=