APA

"UNITED NATIONS E. A. S. C. F. A. A. T. P., "UNITED NATIONS E. A. S. C. F. A. A. T. P., . (1991). Ground water quality and monitoring in Asia and the pacfic. New: York United Nations U S A.

Chicago

"UNITED NATIONS ECONOMIC AND SOCIAL COMMISSION FOR ASIA AND THE PACIFIC.", "UNITED NATIONS ECONOMIC AND SOCIAL COMMISSION FOR ASIA AND THE PACIFIC.", . 1991. Ground water quality and monitoring in Asia and the pacfic. New: York United Nations U S A.

Harvard

"UNITED NATIONS E. A. S. C. F. A. A. T. P., "UNITED NATIONS E. A. S. C. F. A. A. T. P., . (1991). Ground water quality and monitoring in Asia and the pacfic. New: York United Nations U S A.

MLA

"UNITED NATIONS ECONOMIC AND SOCIAL COMMISSION FOR ASIA AND THE PACIFIC.", "UNITED NATIONS ECONOMIC AND SOCIAL COMMISSION FOR ASIA AND THE PACIFIC.", . Ground water quality and monitoring in Asia and the pacfic. New: York United Nations U S A. 1991.