APA
Mullins C. E., Smith K. A., . (1991). Soil analysis: Physical methods. New York: Marcel Dekker.
Chicago
Mullins Chris E, Smith Keith A, . 1991. Soil analysis: Physical methods. New York: Marcel Dekker.
Harvard
Mullins C. E., Smith K. A., . (1991). Soil analysis: Physical methods. New York: Marcel Dekker.
MLA
Mullins Chris E, Smith Keith A, . Soil analysis: Physical methods. New York: Marcel Dekker. 1991.
