Gaya APA
Rowlands, A., Sargent, A.
(2008).
The ECG Workbook
(
2)
.
Penrith:
Reeds Limited,.
Gaya MLA
Rowlands, Angela., Sargent, Andrew.
"The ECG Workbook".
2
Penrith:
Reeds Limited,,
2008.
Electronic Resource.