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121
Inauguration of Pantabangan Dam, Nueva Ecija, Philippines, September 1974.
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122
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123
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124
Project status report as of December 31, 1973 Upper Pampanga River Project, loan no. 637 PH
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125
Water management in Philippine irrigation systems research and operations.
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126
Water resources [proceedings] of the Congress held on Feb. 12-17, 1973 in U.P. at Los Banos.
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127
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128
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129
UNDP Laguna de Bay water resources development study PHI 721/003 plan of study
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130
Water management in Philippine irrigation systems research and operations
Foilsithe / Cruthaithe 1973LEABHAR