Gaya APA
Howat, I.
(2009).
Ten Boys Who Didn't Give In: Light Keepers
(
Cetakan Pertama)
.
Scotland:
Prentice Hall.
Gaya MLA
Howat, Irene.
"Ten Boys Who Didn't Give In: Light Keepers".
Cetakan Pertama
Scotland:
Prentice Hall,
2009.
Karya Cetak.