1. A new x-ray technique and its application to orthodontia;Broadbent;Angle Orthod,1931
2. Bolton standards of dentofacial developmental growth;Broadbent,1975
3. Fifty years of cephalometric radiography;Thurow;Angle Orthod,1981
4. Orthodontic diagnosis and planning;Ricketts,1982
5. Perspectives in the clinical application of cephalometrics: the first fifty years;Ricketts;Angle Orthod,1981