APA (7th ed.) Citation

Draxler, R. R. (2004). HYSPLIT4̲ users's guide (Version 4.7.). [Air Resources Laboratory].

Chicago Style (17th ed.) Citation

Draxler, Roland R. HYSPLIT4̲ Users's Guide. Version 4.7. [Silver Spring, Md.]: [Air Resources Laboratory], 2004.

MLA (8th ed.) Citation

Draxler, Roland R. HYSPLIT4̲ Users's Guide. Version 4.7. [Air Resources Laboratory], 2004.