Gaya APA
Butterworth, R. (2005).
The detour: Towards revising Catholicism. Preface by Clarence Gallagher. .
Herefordshire:
Herefordshire Gracewing.
Gaya MLA
Butterworth, Robert.
"The detour: Towards revising Catholicism. Preface by Clarence Gallagher. ".
Herefordshire:
Herefordshire Gracewing,
2005.
Buku.