Cita APA (7a ed.)

Kim, H. J., Helfand, G. E., & Howitt, R. E. (1998). An Economic Analysis of Ozone Control in California's San Joaquin Valley. Western Agricultural Economics Association.

Cita Chicago Style (17a ed.)

Kim, Hong Jin, Gloria E. Helfand, y Richard E. Howitt. An Economic Analysis of Ozone Control in California's San Joaquin Valley. Western Agricultural Economics Association, 1998.

Cita MLA (9a ed.)

Kim, Hong Jin, et al. An Economic Analysis of Ozone Control in California's San Joaquin Valley. Western Agricultural Economics Association, 1998.