APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Morgan, David L., et al. Focus Group Kit. SAGE Publications, 1998.