Gaya APA
Sampling Techniques third edition. (1997).
:
.
Gaya Chicago
Sampling Techniques third edition.
3 edition.
:
,
1997.
Text.
Gaya MLA
Sampling Techniques third edition.
3 edition.
:
,
1997.
Text.
Gaya Turabian
Sampling Techniques third edition.
:
,
1997.
Print.