Gaya APA
Hannula, D.
(2008).
Coaching swimming successfully : sukses melatih renang
.
Yogyakarta:
Pustaka Insan Madani.
Gaya MLA
Hannula, Dick.
"Coaching swimming successfully : sukses melatih renang".
Yogyakarta:
Pustaka Insan Madani,
2008.
Text.