APA (7th ed.) Citation

(1991). Penang Hill: The need to save our natural heritage. Friends of Penang Hill.

Chicago Style (17th ed.) Citation

Penang Hill: The Need to Save Our Natural Heritage. Penang: Friends of Penang Hill, 1991.

MLA (9th ed.) Citation

Penang Hill: The Need to Save Our Natural Heritage. Friends of Penang Hill, 1991.

Warning: These citations may not always be 100% accurate.