APA (7th ed.) Citation

Campbell, J. P. (1982). What to study: Generating and developing research questions/ by John P. Campbell, Richard L. Daft and Charles L. Hulin. Sage Pubs.

Chicago Style (17th ed.) Citation

Campbell, John P. What to Study: Generating and Developing Research Questions/ by John P. Campbell, Richard L. Daft and Charles L. Hulin. London: Sage Pubs, 1982.

MLA (8th ed.) Citation

Campbell, John P. What to Study: Generating and Developing Research Questions/ by John P. Campbell, Richard L. Daft and Charles L. Hulin. Sage Pubs, 1982.