Dyfyniad APA

Greenwald, T., & Coovert, J. P. (2012). Charlie Joe Jackson's guide to extra credit. Roaring Brook Press.

Dyfyniad Arddull Chicago

Greenwald, Tom, and J. P. Coovert. Charlie Joe Jackson's Guide to Extra Credit. New York: Roaring Brook Press, 2012.

Dyfyniad MLA

Greenwald, Tom, and J. P. Coovert. Charlie Joe Jackson's Guide to Extra Credit. Roaring Brook Press, 2012.

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