M. C. O'Connor Patrick Knowles books & textbook
Liosta de phlanndai na hEireann = Hand-list of Irish plants / (begun by M.C. Knowles.) [Completed by P. O'Connor.]
M. C. O'Connor Patrick Knowles
Baile Atha Cliath : Oifig an tSlothair = Dublin : The Stationery Office /1934T Paperback
