Usman, E. K. 'Green oasis' draws nature lovers. Manila Bulletin.
Cita Chicago (17th ed.)Usman, Edd K. "'Green Oasis' Draws Nature Lovers." Manila Bulletin .
Cita MLA (9th ed.)Usman, Edd K. "'Green Oasis' Draws Nature Lovers." Manila Bulletin, .
Atenció: Aquestes cites poden no estar 100% correctes.