Gaya APA
Howat, I. (2009).
George Muller: The Children's Champion: Trail Blazers (Cetakan Pertama).
Scotland:
Christian Focus.
Gaya MLA
Howat, Irene.
"George Muller: The Children's Champion: Trail Blazers".
Cetakan Pertama
Scotland:
Christian Focus,
2009.
Karya Cetak.