Contracting Of The Service For Preparation Of The Complementary Environmental Management Instrument ¿ Supporting Technical Report ¿ Its N°04, For The Improvement Work Of The Sancos-Saccsamarca-Putaccasa-Oscconta-Emp Pe-32ª Departmental Road In Las - Contracting Of The Service For Preparation Of The Instrument Of Complementary Environmental Management – Supporting Technical Report – Its N°04, For The Improvement Work Of The Departmental Road Sancos-Saccsamarca-Putaccasa-Oscconta-Emp Pe-32ª In The Provinces Of Huancasancos And Lucanas, Sacsamarca,