APA (7th ed.) Citation

Severson, R. C., & Shacklette, H. T. (1988). Essential elements and soil amendments for plants: Sources and use for agriculture. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Severson, R. C., and Hansford T. Shacklette. Essential Elements and Soil Amendments for Plants: Sources and Use for Agriculture. [Reston, Virginia]: Department of the Interior, U.S. Geological Survey, 1988.

MLA (9th ed.) Citation

Severson, R. C., and Hansford T. Shacklette. Essential Elements and Soil Amendments for Plants: Sources and Use for Agriculture. Department of the Interior, U.S. Geological Survey, 1988.