Dyfyniad APA
Salisbury, R. J. (2013). So far, so good. University of Nebraska Press.
Dyfyniad Arddull Chicago
Salisbury, Ralph J. So Far, so Good. Lincoln: University of Nebraska Press, 2013.
Dyfyniad MLA
Salisbury, Ralph J. So Far, so Good. University of Nebraska Press, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.