APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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