Gaya APA
Covey, Sean. (1998).
The 7 habits of highly effective teens : the ultimate teenage success guide .
New York:
Simon and Schuster.
Gaya Chicago
Covey, Sean.
The 7 habits of highly effective teens : the ultimate teenage success guide.
New York:
Simon and Schuster,
1998.
Buku.
Gaya MLA
Covey, Sean.
The 7 habits of highly effective teens : the ultimate teenage success guide.
New York:
Simon and Schuster,
1998.
Buku.
Gaya Turabian
Covey, Sean.
The 7 habits of highly effective teens : the ultimate teenage success guide.
New York:
Simon and Schuster,
1998.
Buku.