https://www.bookdepository.com/Theology-the-Lutheran-Way-Oswald-Bayer/9781506427294?ref=grid-view&qid=1505450091484&sr=1-1

 

https://www.bookdepository.com/The-Harvest-of-Medieval-Theology-H-Oberman/9780801020377?ref=grid-view&qid=1505450118675&sr=1-1

 

https://www.bookdepository.com/Martin-Luther-Robert-Kolb/9780199208944?ref=grid-view&qid=1505450146120&sr=1-1

 

https://www.bookdepository.com/Martin-Luthers-Theology-O-Bayer/9780802827999?ref=grid-view&qid=1505450189170&sr=1-1