APA Style
Directory of course material-1984. (1984).
Boston:
HBS.
Chicago Style
Directory of course material-1984.
.
Boston:
HBS,
1984.
.
MLA Style
Directory of course material-1984.
.
Boston:
HBS,
1984.
.
Turabian Style
Directory of course material-1984.
Boston:
HBS,
1984.
.