A comparison of effectiveness of motivational techniques on physical performance of boys at three age levels/
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| Format: | Book |
| Language: | English |
| Published: |
Chadron, Neb:
Johnson,
1974
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| Subjects: |
| Item Description: | Microform Publications, College of Health, Physical Education and Recreation, University of Oregon, 1976. - 1 sheet ; 11 x 15 cm. |
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| Physical Description: | vii, 60 leaves : ill. |
| Bibliography: | Bibliography: leaves 52-56. |