APA (7th ed.) Citation

Reston, J., Jr. (2015). Luther's fortress: Martin Luther and his Reformation under siege. Basic Books.

Chicago Style (17th ed.) Citation

Reston, James, Jr. Luther's Fortress: Martin Luther and His Reformation Under Siege. New York City: Basic Books, 2015.

MLA (8th ed.) Citation

Reston, James, Jr. Luther's Fortress: Martin Luther and His Reformation Under Siege. Basic Books, 2015.

Warning: These citations may not always be 100% accurate.