Sloan, R. P. (1964). On a shoestring and a prayer ([1st ed.].). Doubleday.
Dyfyniad Arddull ChicagoSloan, Raymond P. On a Shoestring and a Prayer. [1st ed.]. Garden City, N.Y.: Doubleday, 1964.
Dyfyniad MLASloan, Raymond P. On a Shoestring and a Prayer. [1st ed.]. Doubleday, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.