APA

Sumner M. E., .Handbook of Soil Science. Boca Raton: CRC Press.

Chicago

Sumner Malcolm E, .Handbook of Soil Science. Boca Raton: CRC Press.

Harvard

Sumner M. E., .Handbook of Soil Science. Boca Raton: CRC Press.

MLA

Sumner Malcolm E, .Boca Raton: CRC Press. .