Proceedings of the specially conference on advances in irrigation and drainage : Surviving external pressures: American snow king Resort Jackson, Wyoming, july 20-22, 1983 / Sponsored by the irrigation and drainage division of the American society of civil engineers ; Co-sponsors, American society of agricaltural engineers, National association of conservation districts ; John Borrelli, Victor R. Hasfurther, and Robert D. Burman, co-editors.

Τύπος υλικού: Κείμενο