Dyfyniad APA

abdel hady, a. m., omara, a., & vlotman w. f. (2003). An Investigation of clay percentage at abu matamir area for envelope need deremination. drainage research institute.

Dyfyniad Arddull Chicago

abdel hady, ahmed m., akmal omara, and vlotman w. f. An Investigation of Clay Percentage at Abu Matamir Area for Envelope Need Deremination. cairo: drainage research institute, 2003.

Dyfyniad MLA

abdel hady, ahmed m., et al. An Investigation of Clay Percentage at Abu Matamir Area for Envelope Need Deremination. drainage research institute, 2003.

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