Gaya APA
Field Research : A Sourcebook and Field Manual. (1982).
:
.
Gaya Chicago
Field Research : A Sourcebook and Field Manual.
.
:
,
1982.
Text.
Gaya MLA
Field Research : A Sourcebook and Field Manual.
.
:
,
1982.
Text.
Gaya Turabian
Field Research : A Sourcebook and Field Manual.
:
,
1982.
Print.