APA Zitierstil

(1970). 1970 Ayer directory: Newspapers, magazines and trade publications. Pennsylvania:.

Chicago Zitierstil

1970 Ayer Directory: Newspapers, Magazines and Trade Publications. Pennsylvania:, 1970.

MLA Zitierstil

1970 Ayer Directory: Newspapers, Magazines and Trade Publications. Pennsylvania:, 1970.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.