Cita APA

Briggs, L. W., Rohrer, J. E., Ludke, R. L., Hilsenrath, P. E., & Phillips, K. T. (1995). Geographic variation in primary care visits in Iowa.

Chicago Style Citation

Briggs, L W., J E. Rohrer, R L. Ludke, P E. Hilsenrath, i K T. Phillips. Geographic Variation in Primary Care Visits in Iowa. 1995.

Cita MLA

Briggs, L W., et al. Geographic Variation in Primary Care Visits in Iowa. 1995.