Gaya APA
Marshall, Catherine. (1989).
Designing qualitative research .
Newbury Park:
Sage.
Gaya Chicago
Marshall, Catherine.
Designing qualitative research.
Newbury Park:
Sage,
1989.
Text.
Gaya MLA
Marshall, Catherine.
Designing qualitative research.
Newbury Park:
Sage,
1989.
Text.
Gaya Turabian
Marshall, Catherine.
Designing qualitative research.
Newbury Park:
Sage,
1989.
Print.