(1997). UP's environmental heritage for the 21st century: The Laguna-Quezon and Laguna land grant master plan. s.n.
Chicago Style (17. basım) AtıfUP's Environmental Heritage for the 21st Century: The Laguna-Quezon and Laguna Land Grant Master Plan. [S.l: s.n, 1997.
MLA (9th ed.) AtıfUP's Environmental Heritage for the 21st Century: The Laguna-Quezon and Laguna Land Grant Master Plan. s.n, 1997.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..