This bibliography is the third in a series of compilations of research related to pre-adolescent problems commonly treated through outpatient mental health settings such as clinics and schools. The original document (ED 073 849) covered literature up to 1971, and the first supplement (PS 007 263) focused on research that appeared in 1971. This, the second supplement, includes a few studies that were overlooked in the earlier listings, and research that was published in 1972. The bibliography is organized according to the following topics: (1) Normative and Epidemiological Studies, (2) Description and Classification, (3) Familial and Parental Variables, (4) Child (Client) Variables, (5) Validity and Reliability of Anamnestic Data, (6) The Clinic, (7) Psychological Testing and Test Results, (8) Treatment, (9) Therapist Variables, (10) Follow-Up and Treatment Outcome Studies, (11) Investigating Child Therapy, (12) Outside the Clinic. (DP)