R. D. Langman has written:
'Computer control of a simple electro-thermal process'
Henry R. Langman has written: 'Electrical horology' -- subject(s): Clocks, Electric, Electric Clocks
R. D. Keeling has written: 'Shaw'
R. D. Manning has written: 'The abbey'
R. D. Raugul has written: 'Grim'
D. R. Snodgrass has written: 'Ceylon'
D. R. Baxter has written: 'Blunderbusses'
R. D. Molefe has written: 'Ipelafatso'
R. D. Pollard has written: 'The Nugget file'
R. D. Milns has written: 'Alexander the Great'
D. R Andersen has written: 'Crazy and a half'
R. D. Gidney has written: 'From Hope to Harris'
R. D. Driscoll has written: 'Retail merchandising'