Gaya APA
Kenna, C., Murtagh, J.
(1989).
Backpain and spinal manipulation: A practical guide
.
London:
Butterworth.
Gaya MLA
Kenna, Clive., Murtagh, John.
"Backpain and spinal manipulation: A practical guide".
London:
Butterworth,
1989.
Text.