APA (7th ed.) Citation

CAMPBELL, J. P., Daft, R. L., & Hulin, C. L. (1982). What to study: Generating and developing research questions. Sage Publications.

Chicago Style (17th ed.) Citation

CAMPBELL, John P., Richard L. Daft, and Charles L. Hulin. What to Study: Generating and Developing Research Questions. Beverly Hills: Sage Publications, 1982.

MLA (8th ed.) Citation

CAMPBELL, John P., et al. What to Study: Generating and Developing Research Questions. Sage Publications, 1982.