Dyfyniad APA

Stacey Palen. (2002). Schaum's outline of theory and problems of astronomy. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Stacey Palen. Schaum's Outline of Theory and Problems of Astronomy. New York: McGraw-Hill, 2002.

Dyfyniad MLA

Stacey Palen. Schaum's Outline of Theory and Problems of Astronomy. New York: McGraw-Hill, 2002.

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