Gaya APA
Win SPIRS 5.0 Ovid Technologies - SP-0309-0015. (2006).
Wina:
INIS.
Gaya Chicago
Win SPIRS 5.0 Ovid Technologies - SP-0309-0015.
.
Wina:
INIS,
2006.
CD Software.
Gaya MLA
Win SPIRS 5.0 Ovid Technologies - SP-0309-0015.
.
Wina:
INIS,
2006.
CD Software.
Gaya Turabian
Win SPIRS 5.0 Ovid Technologies - SP-0309-0015.
Wina:
INIS,
2006.
CD Software.