Cita APA (7a ed.)

Soil Science Society of America, Fertilizer Industry, Potash and Phosphate Institute, & National Fertilizer Development Center of the Tennessee Valley Authority. (1980). Phosphate fertilizer technology: A slide set assembled. SSSA.

Cita Chicago Style (17a ed.)

Soil Science Society of America, Fertilizer Industry, Potash and Phosphate Institute, y National Fertilizer Development Center of the Tennessee Valley Authority. Phosphate Fertilizer Technology: A Slide Set Assembled. Madison, Wis.: SSSA, 1980.

Cita MLA (8a ed.)

Soil Science Society of America, et al. Phosphate Fertilizer Technology: A Slide Set Assembled. SSSA, 1980.