Trích dẫn APA

Jennings, H. H. (1948). Sociometry in group relations: A manual for teachers (2nd ed.). American council of education.

Trích dẫn kiểu Chicago

Jennings, Helen Hall. Sociometry in Group Relations: A Manual for Teachers. 2nd ed. Washington: American council of education, 1948.

Trích dẫn MLA

Jennings, Helen Hall. Sociometry in Group Relations: A Manual for Teachers. 2nd ed. American council of education, 1948.

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