APA

Malak Abdel-Haleem Ramadan, M. A. Daif & M. I. E. Helal. (1995). Studies on the pollution of the agricultural environment in Egypt. : .

Chicago

Malak Abdel-Haleem Ramadan, M. A. Daif and M. I. E. Helal. 1995. Studies on the pollution of the agricultural environment in Egypt. : .

Harvard

Malak Abdel-Haleem Ramadan, M. A. Daif and M. I. E. Helal. (1995). Studies on the pollution of the agricultural environment in Egypt. : .

MLA

Malak Abdel-Haleem Ramadan, M. A. Daif and M. I. E. Helal. Studies on the pollution of the agricultural environment in Egypt. : . 1995.