Gaya APA
Rupp, E, G., Watson, P, S. (1969).
Luther and Erasmus : free will and salvation .
Louisville, Kentucky, USA:
Westminster Press.
Gaya MLA
Rupp, E., Gordon., Watson, Philip, S..
"Luther and Erasmus : free will and salvation".
Louisville, Kentucky, USA:
Westminster Press,
1969.
e-book.