Goldstein, M.S. , and Stanton, F.L.Various Types of Occlusion and Amounts of Over-Bite in Normal and Abnormal Occlusion between 2 and 12 Years, Internat . J. Orthodont., 22:549, 1936.
2.
Angle, E.H.Malocclusion of Teeth. 7th ed. Philadelphia: S. S. White, 1907.
3.
Lischer , B.E.Principles and Methods of Orthodontia. New York : Lea & Febiger, 1912.
4.
New Practical Standard Dictionary, Funk & Wagnalls, 1952.
5.
United Community Services Of Metropolitan Boston.Medical Care, Needs, and Services in the Boston Metropolitan Area . 1957.
6.
Population and Legal Voters of Massachusetts: The Decennial Census. Washington, D.C.: U.S. Bureau of the Census, 1955.
7.
Cohen, M.M.Prophylactic Orthodontics and Tooth Guidance . Ill. Dent. J., 26:707, 815, 1957.
8.
Cohen, M.M., Shapiro, E., and Green, L.D.Distribution of Malocclusion in 443 Pre-School Children in Brookline, Mass . (unpublished).
9.
Aplan K., A. H. Psychological Factors in the Practice of Dentistry. J.A.D.A., 57:835, 1958.
10.
English, O.S. , and Pearson, G.H.J.Emotional Problems of Living . New York: W. W. Norton & Co., 1945.
11.
Lewis,S.J.L. Thumbsucking: The Cause of Malocclusion in Deciduous Teeth, J.A. D.A., 17:1060, 1930.
12.
Johnson, L.R.The Status of Thumbsucking and Fingersucking , J.A.D.A., 26:1245, 1930.
13.
Swinehart, E.W.Relations of Thumbsucking to Malocclusion , Am. J. Orthodont. and Oral Surg., 24:509,1938.
14.
Lerner,I. Thumbsucking and Dental Occlusion , Am. J. Orthodont., 41:640, 1955.
15.
Hemley, S.Ortkodontic Theory and Practice. New York: Grune & Stratton, 1953.
16.
Baume, L.J.Physiological Tooth Migration and Its Significance for the Development of Occlusion, J. D. Res., 29:123, 1950.