APA (7th ed.) Citation

(1990). PENANG looking back, looking ahead 20 years of progress. Penang Development Corporation.

Chicago Style (17th ed.) Citation

PENANG Looking Back, Looking Ahead 20 Years of Progress. Pulau Pinang: Penang Development Corporation, 1990.

MLA (8th ed.) Citation

PENANG Looking Back, Looking Ahead 20 Years of Progress. Penang Development Corporation, 1990.

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