Ong. (1997). Tropical trees & shrubs planting: A practical guide. Pelanduk Publications.
Chicago Style (17th ed.) CitationOng. Tropical Trees & Shrubs Planting: A Practical Guide. Petaling Jaya: Pelanduk Publications, 1997.
MLA (8th ed.) CitationOng. Tropical Trees & Shrubs Planting: A Practical Guide. Pelanduk Publications, 1997.
Warning: These citations may not always be 100% accurate.