APA (7e ed.) Bronvermelding

(1985). A bibliography of American county histories / compiled by P. William Filby.

Chicago (17e ed.) Bronvermelding

A Bibliography of American County Histories / Compiled by P. William Filby. 1985.

MLA (9e ed.) Bronvermelding

A Bibliography of American County Histories / Compiled by P. William Filby. 1985.

Let op: Deze citaties zijn niet altijd 100% accuraat.