APA (7th ed.) Citation

(1990). I B M Sri Lanka customer education catalog 1990. I B M Sri Lanka Education centre.

Chicago Style (17th ed.) Citation

I B M Sri Lanka Customer Education Catalog 1990. [Colombo]: I B M Sri Lanka Education centre, 1990.

MLA (9th ed.) Citation

I B M Sri Lanka Customer Education Catalog 1990. I B M Sri Lanka Education centre, 1990.

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