public List <Book> AdvancedSearch(string title, string author, int?year, string isbn, Category?category) { return(_proxy.AdvancedSearch(title, author, year, isbn, category)); }
public List <Book> AdvancedSearch(string title, string author, int?year, string isbn, Category?category) { return(_proxy.AdvancedSearch(title, author, year, isbn, category)); }