TY - BOOK AU - Lal, Pranay TI - Invisible empire: the natural history of viruses SN - 9780670095766 (hardback) U1 - 579.2 LAL PY - 2021/// CY - Gurugram, Haryana, India PB - Penguin/Viking, an imprint of Penguin Random House KW - Viruses KW - Medical virology KW - Ecology N1 - Amazon MAA4-260164/04 Rs.583/- ER -