Penggayaan APA

KRUEGER, Richard A.. (1988). Focus groups : . London: SAGE Publications.

Chicago Style

KRUEGER, Richard A.. Focus groups :. London: SAGE Publications, 1988. Buku.

MLA Style

KRUEGER, Richard A.. Focus groups :. London: SAGE Publications, 1988. Buku.

Turabian Style

KRUEGER, Richard A.. Focus groups :. London: SAGE Publications, 1988. Buku.