Citazione Stile APA (7a Edizione)

Walker, E. N. (1975). Introduction to maintenance planning in manufacturing establishments. U.N.

Citazione stile Chigago Style (17a edizione)

Walker, E. N. Introduction to Maintenance Planning in Manufacturing Establishments. New York: U.N, 1975.

Citatione MLA (9a ed.)

Walker, E. N. Introduction to Maintenance Planning in Manufacturing Establishments. U.N, 1975.