there is a reference type called Edited Book and you should use that. It has a field called “editors” rather than “authors”.
You shouldn’t have to specify the ed. parts as they are produced by the output style itself. the attached record would be formated as
Furth, M., & Greaves, M. (Eds.). (1989). Molecular Diagnostics of Human Cancer. Cold Spring Harbor, NY: Cold Spring Harbor Laboratory Press.
