APA aipamena

U ASWATHANARAYANA. (1999). Soil resources and the environment. Enfield, New Hampshire: Science.

Chicago Style aipamena

U ASWATHANARAYANA. Soil Resources and the Environment. Enfield, New Hampshire: Science, 1999.

MLA aipamena

U ASWATHANARAYANA. Soil Resources and the Environment. Enfield, New Hampshire: Science, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.