Pigford, D., & .Baur, G. R. (1990). Expert systems for business: Concepts and applications : featuring VP-Expert. Boyd & Fraser Pub. Co..
Citazione stile Chigago Style (17a edizione)Pigford, Darleen, e Gregory R. .Baur. Expert Systems for Business: Concepts and Applications : Featuring VP-Expert. Boston: Boyd & Fraser Pub. Co., 1990.
Citatione MLA (9a ed.)Pigford, Darleen, e Gregory R. .Baur. Expert Systems for Business: Concepts and Applications : Featuring VP-Expert. Boyd & Fraser Pub. Co., 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.