Bierman, K. J. (1980). Unit Time/Cost Study of the Processing Unit, Technical Services Division, Tucson Public Library. Revised Edition.
Citazione stile Chigago Style (17a edizione)Bierman, Kenneth J. Unit Time/Cost Study of the Processing Unit, Technical Services Division, Tucson Public Library. Revised Edition. 1980.
Citatione MLA (9a ed.)Bierman, Kenneth J. Unit Time/Cost Study of the Processing Unit, Technical Services Division, Tucson Public Library. Revised Edition. 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.