Jeevan P verma creator Anupam varma text New Delhi Angkor 1995 monographic 476 this book dscribed the progress of disease depends on five of its main components, namly, the pathogen, the host, the the environment, the element of time and the activities of humans. Glasshouse Laboratory Enterobacter Glasshouse, Laboratory, Enterobacter 632 81-85992-04-5