APA
Withington F. G., . (1978). Environment for Systems Programs. : Addison-Wesley Publishing Company.
Chicago
Withington Frederic G, . 1978. Environment for Systems Programs. : Addison-Wesley Publishing Company.
Harvard
Withington F. G., . (1978). Environment for Systems Programs. : Addison-Wesley Publishing Company.
MLA
Withington Frederic G, . Environment for Systems Programs. : Addison-Wesley Publishing Company. 1978.
