Gaya APA

Williams, F. (1991). Reasoning With Statistics : How to Read Quantitative Research (4). Austin, Texas: Harcourt Brace Jovanovich College Publishers.

Gaya MLA

Williams, Frederick. "Reasoning With Statistics : How to Read Quantitative Research". 4 Austin, Texas: Harcourt Brace Jovanovich College Publishers, 1991. Text.