Cita APA (7a ed.)

Alexander, M. (1977). Introduction to soil microbiology. R.E. Krieger Pub. Co..

Cita Chicago Style (17a ed.)

Alexander, Martin. Introduction to Soil Microbiology. Malabar, Fla.: R.E. Krieger Pub. Co., 1977.

Cita MLA (8a ed.)

Alexander, Martin. Introduction to Soil Microbiology. R.E. Krieger Pub. Co., 1977.