Roentgen atlas of old Dutch clocks / T. de Roo ; restoration and technical advice P. Vel ; [English transl. by G.P. Bieger-Smith]Radiological atlas of common diseases of the small bowel / J.L. Sellink ; [transl. from the Dutch by G.P. Bieger-Smith ; ill. C.T. Ruygrok and M. Popkes]Sequelae of female sterilization : analysis of the reactions of women from Hengelo (O) to tubal sterilization, with particular emphasis on regret / door Henry Adriaan van Opstall ; [transl. by G.P. Bieger-Smith]Sequelae of female sterilization : analysis of the reactions of women from Hengelo (O) to tubal sterilization, with particular emphasis on regret / door Henry Adriaan van Opstall ; [transl. by G.P. Bieger-Smith]