Huffman, H., Mulkerne, D. J. D., & Russon, A. R. (1965). Office procedures and administration: College course. Gregg Division, McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Huffman, Harry, Donald J. D. Mulkerne, e Allien R. Russon. Office Procedures and Administration: College Course. New York: Gregg Division, McGraw-Hill, 1965.
Citatione MLA (9a ed.)Huffman, Harry, et al. Office Procedures and Administration: College Course. Gregg Division, McGraw-Hill, 1965.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.