Dyfyniad APA
Spear, A. H. (2010). Crossing the barriers: The autobiography of Allan H. Spear. University of Minnesota Press.
Dyfyniad Arddull Chicago
Spear, Allan H. Crossing the Barriers: The Autobiography of Allan H. Spear. Minneapolis: University of Minnesota Press, 2010.
Dyfyniad MLA
Spear, Allan H. Crossing the Barriers: The Autobiography of Allan H. Spear. University of Minnesota Press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.