Bergin (1981)†, Crane (1943)†, Crane (1975)†, Gibbs (1974)†, Gray (1942), Greenspan (1975)†, Kerwin (1971)†, Miller (1961)†, Montague (1980)†, Powers (1977)†, Salmon & Horch (1973)†, Teal (1958)†, Thurman (1979)†, von Hagen (1970)†, Williams (1965)†, Williams (1984)†
Entries marked with † represent indirect references to location through citation.