na INLIS000000000009321 20240222091452 0010-0521009321 240222 | | 0 435 54755 0 en 576.858/HUG/v 576.858/HUG/v HUGHES, Sally Smith The virus : A History of the concept / HUGHES, Sally Smith London : Heinemann Educational Books, 1977 xix, 140 p.: ill.; 23 m. virus -- HISTORY