APA (7th ed.) Citation

Philippine National Railways. (1987). PNR: The first 100 years. PNR.

Chicago Style (17th ed.) Citation

Philippine National Railways. PNR: The First 100 Years. Manila: PNR, 1987.

MLA (9th ed.) Citation

Philippine National Railways. PNR: The First 100 Years. PNR, 1987.

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