Gaya APA
Evaluation Studies Review Annual Volume 6. (1981).
:
.
Gaya Chicago
Evaluation Studies Review Annual Volume 6.
.
:
,
1981.
Text.
Gaya MLA
Evaluation Studies Review Annual Volume 6.
.
:
,
1981.
Text.
Gaya Turabian
Evaluation Studies Review Annual Volume 6.
:
,
1981.
Print.