Gaya APA
Swindoll, C, R.
(1981).
Improving Your Serve : The Art of Unselfish Living
.
Waco, Texas, USA:
Word Books.
Gaya MLA
Swindoll, Charles, R..
"Improving Your Serve : The Art of Unselfish Living".
Waco, Texas, USA:
Word Books,
1981.
Academic.