Cita APA (7a ed.)

Lunt, H. A., Jacobson, H. G. M., & Swanson, C. L. W. (1950). The Morgan soil testing system. Connecticut Agricultural Experiment Station.

Cita Chicago Style (17a ed.)

Lunt, Herber A., H. G. M. Jacobson, y C. L. W. Swanson. The Morgan Soil Testing System. New Haven: Connecticut Agricultural Experiment Station, 1950.

Cita MLA (9a ed.)

Lunt, Herber A., et al. The Morgan Soil Testing System. Connecticut Agricultural Experiment Station, 1950.