Dyfyniad APA

COURTENAY L A. SPACE PENGUINS: COSMIC CRASH (2015.). STONE ARCH BOOK PUBLISHERS.

Dyfyniad Arddull Chicago

COURTENAY L A. SPACE PENGUINS: COSMIC CRASH. 2015. MINNESOTA: STONE ARCH BOOK PUBLISHERS.

Dyfyniad MLA

COURTENAY L A. SPACE PENGUINS: COSMIC CRASH. 2015. STONE ARCH BOOK PUBLISHERS.

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