Kurasa zilizounganishwa na "Faili:Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers (1910) (14580372557).jpg"
Kurasa zifuatazo zimeunganishwa na Faili:Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers (1910) (14580372557).jpg: