Ballou, H. W. (1959). Guide to microreproduction equipment. National Microfilm Association.
Citazione stile Chigago Style (17a edizione)Ballou, Hubbard W. Guide to Microreproduction Equipment. Annapolis, Md: National Microfilm Association, 1959.
Citatione MLA (9a ed.)Ballou, Hubbard W. Guide to Microreproduction Equipment. National Microfilm Association, 1959.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.