Dyfyniad APA

Jackson, J. H. (1980). Teacher's manual spaceship earth: Earth science. Houghton Mifflin.

Dyfyniad Arddull Chicago

Jackson, Joseph H. Teacher's Manual Spaceship Earth: Earth Science. Boston: Houghton Mifflin, 1980.

Dyfyniad MLA

Jackson, Joseph H. Teacher's Manual Spaceship Earth: Earth Science. Houghton Mifflin, 1980.

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