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	1.	Epidemiology for public health practice. by Friis, Robert H Sellers, Thomas A Edition: 2nd Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Gaithersburg, Maryland An Aspen Publication, 1999 Availability: Items available for loan: WHO Library (1)Call number: WA 105 P999EFRI. Place hold Add to cart (remove)
	2.	Epidemiology for public health practice. by Friis, Robert H, Sellers, Thomas A Edition: 4th Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Boston Jones Bartlett Publishers, 2009 Availability: Items available for loan: WHO Library (2)Call number: WA 105 2009EP, ... Place hold Add to cart (remove)
	3.	Essentials of environmental health. by Friis Robert H Edition: 2 Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Sudbury Jones & Bartlett Learning, 2012 Availability: Items available for loan: WHO Library (1)Call number: WA 30 2012ES. Place hold Add to cart (remove)
	4.	Epidemiology for public health practice. by Friis Robert H, Sellers Thomas A Edition: 5 Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Burlington Jones & Bartlett Learning, 2014 Availability: Items available for loan: WHO Library (1)Call number: WA 105 2014EP. Place hold Add to cart (remove)

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