Gaya APA
Maier, K., Vianden, R.
(2005).
HFI/NQI 2004
(
1st ed.)
.
Berlin:
Springer.
Gaya MLA
Maier, K.., Vianden, R..
"HFI/NQI 2004".
1st ed.
Berlin:
Springer,
2005.
E Book.