APA Style
The Corporate directory : indexes 1990. (1989).
Bethesda, M.D.:
Cambridge Information Group Directories.
Chicago Style
The Corporate directory : indexes 1990.
.
Bethesda, M.D.:
Cambridge Information Group Directories,
1989.
.
MLA Style
The Corporate directory : indexes 1990.
.
Bethesda, M.D.:
Cambridge Information Group Directories,
1989.
.
Turabian Style
The Corporate directory : indexes 1990.
Bethesda, M.D.:
Cambridge Information Group Directories,
1989.
.