Gaya APA
Whittaker, C.
(1988).
Seven Guides to Effective Prayer (Trawas)
.
Minneapolis:
Bethaniy House Pubishers.
Gaya MLA
Whittaker, Colin.
"Seven Guides to Effective Prayer (Trawas)".
Minneapolis:
Bethaniy House Pubishers,
1988.
Text.