Dyfyniad APA

Riordan,Rick. (2010). Percy Jackson And the lightning Thief. Puffin Books.

Dyfyniad Arddull Chicago

Riordan,Rick. Percy Jackson And the Lightning Thief. UK: Puffin Books, 2010.

Dyfyniad MLA

Riordan,Rick. Percy Jackson And the Lightning Thief. Puffin Books, 2010.

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