Weylman, C. R. (2019). The power of why (1st.). Jaico Publishing, Mumbai.
Chicago Style (17. basım) AtıfWeylman, C. Richard. The Power of Why. 1st. Jaico Publishing, Mumbai, 2019.
MLA (9th ed.) AtıfWeylman, C. Richard. The Power of Why. 1st. Jaico Publishing, Mumbai, 2019.
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