Cita APA (7a ed.)
Mamo, T., & Haque, I. (1991). Phosphorus status of some Ethiopian soils. III. Evaluation of soil test methods for available phosphorus.
Cita Chicago Style (17a ed.)
Mamo, T., y I. Haque. Phosphorus Status of Some Ethiopian Soils. III. Evaluation of Soil Test Methods for Available Phosphorus. 1991.
Cita MLA (9a ed.)
Mamo, T., y I. Haque. Phosphorus Status of Some Ethiopian Soils. III. Evaluation of Soil Test Methods for Available Phosphorus. 1991.
Precaución: Estas citas no son 100% exactas.