APA (7th ed.) Citation

Morgan, D. L., Krueger, R. A., & King, J. A. (1998). The Focus group kit. Sage.

Chicago Style (17th ed.) Citation

Morgan, David L., Richard A. Krueger, and Jean A. King. The Focus Group Kit. Thousand Oaks, Calif: Sage, 1998.

MLA (9th ed.) Citation

Morgan, David L., et al. The Focus Group Kit. Sage, 1998.