RP's longest underground river named geological monument

RP's longest underground river named geological monument

ग्रंथसूची विवरण
में प्रकाशित:Philippine Daily Inquirer (03 Apr. 2003), A12
मुख्य लेखक: Tesorio, Jofelle P.
स्वरूप: लेख
भाषा:English
प्रकाशित: 2003
विषय:
Puerto Princesa Subterranean River National Park