APA Citation

 Hahn, D. B. (2011).  Focus on health.  McGraw-Hill.

Trích dẫn kiểu Chicago

 Hahn, Dale B.  Focus On Health.  McGraw-Hill, 2011.

MLA Citation

 Hahn, Dale B.  Focus On Health.  McGraw-Hill, 2011.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.