Dyfyniad APA

Weylman, C. R. (2019). The power of why (1st.). Jaico Publishing, Mumbai.

Dyfyniad Arddull Chicago

Weylman, C. Richard. The Power of Why. 1st. Jaico Publishing, Mumbai, 2019.

Dyfyniad MLA

Weylman, C. Richard. The Power of Why. 1st. Jaico Publishing, Mumbai, 2019.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.