APA (7th ed.) Citation

Sung. (2004). 323 effective business letters. Minerva Publication.

Chicago Style (17th ed.) Citation

Sung. 323 Effective Business Letters. Selangor: Minerva Publication, 2004.

MLA (8th ed.) Citation

Sung. 323 Effective Business Letters. Minerva Publication, 2004.

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