Gaya APA

RICHARD G FRACHEM, DAVID J. BRADLEY, HEMDA GARELICK, D. DUNCAN MARA. (). APPROPRIATE TECHNOLOGY FOR WATER SUPPLY AND SANITATION . : .

Gaya Chicago

RICHARD G FRACHEM, DAVID J. BRADLEY, HEMDA GARELICK, D. DUNCAN MARA. APPROPRIATE TECHNOLOGY FOR WATER SUPPLY AND SANITATION. : , . .

Gaya MLA

RICHARD G FRACHEM, DAVID J. BRADLEY, HEMDA GARELICK, D. DUNCAN MARA. APPROPRIATE TECHNOLOGY FOR WATER SUPPLY AND SANITATION. : , . .

Gaya Turabian

RICHARD G FRACHEM, DAVID J. BRADLEY, HEMDA GARELICK, D. DUNCAN MARA. APPROPRIATE TECHNOLOGY FOR WATER SUPPLY AND SANITATION. : , . .