1
Psychologist Unretired the Life Pattern of Lillien J Martin, (1948)
2
Doll, Edgar A., The degree of Ph.D. and clinical psychology, Journal of Applied Psychology, 4, 1, pp. 88-90, (1920)
3
Doll, Edgar A., Internship program at the Vineland Laboratory, Journal of Consulting Psychology, 10, 4, pp. 184-190, (1946)
4
Doll, E. E., Before the big time: Early history of the training school at Vineland, 1888 to 1949, American Journal on Mental Retardation, 93, 1, pp. 1-15, (1988)
5
Journal of Applied Psychology, (1919)
6
American Psychologist, (1997)
7
Hollingworth, Leta S., Further communications regarding "A plan for the technical training of consulting psychologists, Journal of Applied Psychology, 2, 3, pp. 280-285, (1918)
8
Lightner Witmer His Life and Times, (1997)
9
American Psychologist, (1972)
10
Morrow, W. R., The development of psychological internship training, Journal of Consulting Psychology, 10, 4, pp. 165-183, (1946)