APA (7th ed.) Citation

Chua. (1989). Wordstar 5: A step-by-step guide. Federal Publications.

Chicago Style (17th ed.) Citation

Chua. Wordstar 5: A Step-by-step Guide. Kuala Lumpur: Federal Publications, 1989.

MLA (8th ed.) Citation

Chua. Wordstar 5: A Step-by-step Guide. Federal Publications, 1989.

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