APA (7th ed.) Citation

Kenkre, J., Hobbs, R., & Greenfield, S. (1993). Research activity in general practice.

Chicago Style (17th ed.) Citation

Kenkre, J., R. Hobbs, and S. Greenfield. Research Activity in General Practice. 1993.

MLA (9th ed.) Citation

Kenkre, J., et al. Research Activity in General Practice. 1993.