Dyfyniad APA

SPILSBURY RICHARD. (2019). LET'S ROCK CRYSTALS (2011 Ed.). CAPSTONE PRESS.

Dyfyniad Arddull Chicago

SPILSBURY RICHARD. LET'S ROCK CRYSTALS. 2011 Ed. MINNESOTA: CAPSTONE PRESS, 2019.

Dyfyniad MLA

SPILSBURY RICHARD. LET'S ROCK CRYSTALS. 2011 Ed. CAPSTONE PRESS, 2019.

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