Gaya APA
The seven habits of highly effective people. (1994).
tempaterbit:
penerbit.
Gaya Chicago
The seven habits of highly effective people.
Edisi.
tempaterbit:
penerbit,
1994.
Text.
Gaya MLA
The seven habits of highly effective people.
Edisi.
tempaterbit:
penerbit,
1994.
Text.
Gaya Turabian
The seven habits of highly effective people.
tempaterbit:
penerbit,
1994.
Print.