Gaya APA
Krueger, Richard A., Casey, Mary Anne. (2000).
Focus groups: a practical guide for applied research (3rd).
Thousand Oaks:
SAGE.
Gaya Chicago
Krueger, Richard A., Casey, Mary Anne.
Focus groups: a practical guide for applied research.
3rd
Thousand Oaks:
SAGE,
2000.
Text.
Gaya MLA
Krueger, Richard A., Casey, Mary Anne.
Focus groups: a practical guide for applied research.
3rd
Thousand Oaks:
SAGE,
2000.
Text.
Gaya Turabian
Krueger, Richard A., Casey, Mary Anne.
Focus groups: a practical guide for applied research.
3rd
Thousand Oaks:
SAGE,
2000.
Print.