text: import React from 'react';
  import { Route } from 'react-router';
  import Root from '../screens';
  import Bookshelf from '../screens/Bookshelf';
  import Book from '../screens/Bookshelf/screens/Book';
  import About from '../screens/About';
  import Admin from '../screens/Admin';
  import AdminBookshelf from '../screens/Admin/screens/Bookshelf';
  import AdminAddBook from '../screens/Admin/screens/Bookshelf/screens/AddBook';
  
  export default (
    <Route path="/" component={Root}>
      <Route path="bookshelf" component={Bookshelf}>
        <Route path=":id" components={Book} />
      </Route>
      <Route path="about" component={About} />
      <Route path="admin" component={Admin}>
        <Route path="bookshelf" component={AdminBookshelf}>
  	<Route path="add" component={AdminAddBook} />
        </Route>
      </Route>
    </Route>
  );
  