Dyfyniad APA

Riordan Rick. (2010). Percy Jackson And The Last Olympian. Puffin Books.

Dyfyniad Arddull Chicago

Riordan Rick. Percy Jackson And The Last Olympian. UK: Puffin Books, 2010.

Dyfyniad MLA

Riordan Rick. Percy Jackson And The Last Olympian. Puffin Books, 2010.

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