TY - GEN AU - Coomaraswamy , U. AU - Paulraj , P.J AU - Herat , Galappatti J.S TI - Botany : principles of microbiology block 1 U1 - 579 PY - 1989/// CY - Nugegoda PB - Open university of Sri Lanka KW - MICROBIOLOGY KW - BOTANY KW - BIOLOGY KW - MICROOGANISMS ER -