Books by Ryan, Brendan.
Characterisation of GaN using
Characterisation of GaN using cathodoluminescence and photoluminescence spectroscopy
Keeping us in the dark
Keeping us in the dark
Day walks in and around Johann
Day walks in and around Johannesburg and Pretoria
A catalogue of the the work of
A catalogue of the the work of the Lancashire comedian George Formby, OBE (1904-1961)
Brendan Ryan's 52 day-walks in and around Johannesburg and Pretoria