Fraenkel, J. R. (1973). Helping students think and value: Strategies for teaching the social studies. Prentice-Hall.
Citace podle Chicago (17th ed.)Fraenkel, Jack R. Helping Students Think and Value: Strategies for Teaching the Social Studies. Englewood Cliffs, N.J., Manila: Prentice-Hall, 1973.
Citace podle MLA (9th ed.)Fraenkel, Jack R. Helping Students Think and Value: Strategies for Teaching the Social Studies. Prentice-Hall, 1973.
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