Παραπομπή APA

Burton, T. L. (1968). Recreation reearch methods: A review of recent studies. Birmingham: University of Birmingham.

Παραπομπή Chicago Style

Burton, Thomas Leonard. Recreation Reearch Methods: A Review of Recent Studies. Birmingham: University of Birmingham, 1968.

Παραπομπή MLA

Burton, Thomas Leonard. Recreation Reearch Methods: A Review of Recent Studies. Birmingham: University of Birmingham, 1968.

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