APA (7th ed.) Citation

Boyle, R. B.P. De Silva the Royal Jeweller. De Silva B.P. Investments.

Chicago Style (17th ed.) Citation

Boyle, Richard. B.P. De Silva the Royal Jeweller. Singapore: De Silva B.P. Investments.

MLA (9th ed.) Citation

Boyle, Richard. B.P. De Silva the Royal Jeweller. De Silva B.P. Investments.

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