Cone, J. D., & Hayes, S. C. (1984). Environmental problems/behavioral solutions. Brooks/Cole Publishing Company.
Chicago-viite (17. p.)Cone, John D., ja Steven C. Hayes. Environmental Problems/behavioral Solutions. Monterey, California: Brooks/Cole Publishing Company, 1984.
MLA-viite (9. p.)Cone, John D., ja Steven C. Hayes. Environmental Problems/behavioral Solutions. Brooks/Cole Publishing Company, 1984.
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