-
1
SSRU transportation inventory of the Bicol River Basin as of January 1974
Baskı/Yayın Bilgisi 1975Kitap -
2
Who get the jobs - the old or the educated? education and employment in the Bicol River Basin
Baskı/Yayın Bilgisi 1974Kitap -
3
Farmers of the River Basin's land consolidation project area nowhere to go but up - and in no great hurry to get there
Baskı/Yayın Bilgisi 1974Kitap