Okewood of the Secret ServiceValentine Williams (pseud. Douglas Valentine) · First published 2016Open the Tome
The Road to YozgadArthur Valentine Holyoake, Douglas Bridgewater (Editor) · First published 2013Open the Tome
The Strength Of The Pack The Personalities Politics And Espionage Intrigues That Shaped The DeaDouglas Valentine · First published 2009ThrillerOpen the Tome
Applied kinesiologyTom Valentine, Carole Valentine, Douglas P. Hetrick · First published 1985Open the Tome
Planning for dental health for developing nations using a treatment need indexAnthony Douglas Valentine · First published 1980Open the Tome
