APA
Hahn D. B., Payne W. A. & Mauer E. (2009). Focus on health. Boston: McGraw-Hill.
Chicago
Hahn Dale B, Payne Wayne A and Mauer Ellen. 2009. Focus on health. Boston: McGraw-Hill.
Harvard
Hahn D. B., Payne W. A. and Mauer E. (2009). Focus on health. Boston: McGraw-Hill.
MLA
Hahn Dale B, Payne Wayne A and Mauer Ellen. Focus on health. Boston: McGraw-Hill. 2009.