APA (7th ed.) Citation

Nelson, J. How to write impressive business letters. SAM Publishing Sdn. Bhd.

Chicago Style (17th ed.) Citation

Nelson, Jens. How to Write Impressive Business Letters. Kuala Lumpur: SAM Publishing Sdn. Bhd.

MLA (9th ed.) Citation

Nelson, Jens. How to Write Impressive Business Letters. SAM Publishing Sdn. Bhd.

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