Cita APA (7th 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 (17th ed.)

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

Cita MLA (9th ed.)

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