Appropriate well drilling technologies : a manual for developing countries /
Eberle, Michael
Appropriate well drilling technologies : a manual for developing countries / compiled and written by Michael Eberle and Jeffrey L. Persons - Washington, D.C. : Agency for International Development, 1978 - 95 p. : ill.
On title page: "A report from National Water Well Association"
Wells
Well drillers
Appropriate well drilling technologies : a manual for developing countries / compiled and written by Michael Eberle and Jeffrey L. Persons - Washington, D.C. : Agency for International Development, 1978 - 95 p. : ill.
On title page: "A report from National Water Well Association"
Wells
Well drillers