Dyfyniad APA

Arny, T. T. (2004). Explorations: Stars, galaxies, and planets. Boston: McGraw-Hill.

Dyfyniad Arddull Chicago

Arny, Thomas T. Explorations: Stars, Galaxies, and Planets. Boston: McGraw-Hill, 2004.

Dyfyniad MLA

Arny, Thomas T. Explorations: Stars, Galaxies, and Planets. Boston: McGraw-Hill, 2004.

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