(1997). UP's environmental heritage for the 21st century: The Laguna-Quezon and Laguna land grant master plan. s.n.
Cita Chicago (17th ed.)UP's Environmental Heritage for the 21st Century: The Laguna-Quezon and Laguna Land Grant Master Plan. [S.l: s.n, 1997.
Cita MLA (9th ed.)UP's Environmental Heritage for the 21st Century: The Laguna-Quezon and Laguna Land Grant Master Plan. s.n, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.