APA-čujuhus (7. p.)
Wrenn, C. G., & Schwarzrock, S. P. (1971). The Mind benders. American Guidance Service, Inc..
Chicago-čujuhus (17. p.)
Wrenn, C. Gilbert, juo Shirley Pratt Schwarzrock. The Mind Benders. [Circle Pines, Minn.: American Guidance Service, Inc., 1971.
MLA-čujuhus (9. p.)
Wrenn, C. Gilbert, juo Shirley Pratt Schwarzrock. The Mind Benders. American Guidance Service, Inc., 1971.
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