Training module on lake environment protection , conservation and management prepared by teachers of Los Banos.Sponsored by PCAMRD.

ग्रंथसूची विवरण
अन्य लेखक: R.D. Guerrero III...et.al
स्वरूप: पुस्तक
प्रकाशित: [s.l.] [s.n.] 1998.
विषय: