Gaya APA
Dulles, A, C. (2005).
A history of apologetics. Foreword by Timothy George. .
San Francisco:
San Francisco Ignatius Press.
Gaya MLA
Dulles, Avery, Cardinal.
"A history of apologetics. Foreword by Timothy George. ".
San Francisco:
San Francisco Ignatius Press,
2005.
Buku.