Statistical report for executive director.
Statistical report for executive director.
- San Juan, P. R. Puerto Rico Aqueduct and Sewer Authority 19-
- v. ill.
Cover title.
Autoridad de Acueductos y Alcantarillados de Puerto Rico.
Water supply--Puerto Rico.
Sewerage--Puerto Rico.
Cover title.
Autoridad de Acueductos y Alcantarillados de Puerto Rico.
Water supply--Puerto Rico.
Sewerage--Puerto Rico.