Snyder, A. (2014). What makes a champion!: Over fifty extraordinary individuals share their insights (BI). World Scientific.
Παραπομπή σε μορφή Chicago (17η εκδ.)Snyder, Allan. What Makes a Champion!: Over Fifty Extraordinary Individuals Share Their Insights (BI). World Scientific, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)Snyder, Allan. What Makes a Champion!: Over Fifty Extraordinary Individuals Share Their Insights (BI). World Scientific, 2014.
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