Laws, Edward A.
Aquatic pollution : an introductory text
John Wiley & Sons, 2000
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Cox, Dennis P.
Introductory geology : a programmed text
W. H. Freeman, 1965
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Mausnes, Judith S.
Epidemiology: an introductory text
W.B. Saunders , 1985
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Leifer, Gloria
Maternity nursing : an introductory text
Elsevier Mosby, 2012
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Price, Debra L.
Pediatric nursing: an introductory text
Elsevier Saunder, 2012
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