APA Style
Covey, Stephen R. (1989).
The seven habits of highly effective people (_).
:
Sinmon & Schuster.
Chicago Style
Covey, Stephen R.
The seven habits of highly effective people.
_
:
Sinmon & Schuster,
1989.
.
MLA Style
Covey, Stephen R.
The seven habits of highly effective people.
_
:
Sinmon & Schuster,
1989.
.
Turabian Style
Covey, Stephen R.
The seven habits of highly effective people.
_
:
Sinmon & Schuster,
1989.
.