Pierakstīties
JAMB - Biology (2012 - No. 30)
The diseases caused by water-borne pathogens include
gonorrhoea and poliomyelitis
typhoid and syphilis
tuberculosis and cholera
typhoid and cholera
komentāri (0)
Piesakieties, lai komentētu
Reklāma
Ļaujiet javascript pareizi ielādēt šo lapu
