APA aipamena

Walker, H. M. (1951). Mathematics essential for elementary statistics: A self teaching manual. Holt.

Chicago Style aipamena

Walker, Helen M. Mathematics Essential for Elementary Statistics: A Self Teaching Manual. New York: Holt, 1951.

MLA aipamena

Walker, Helen M. Mathematics Essential for Elementary Statistics: A Self Teaching Manual. Holt, 1951.

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