Gaya APA
Swindoll, C, R. (1966).
Improving Your Serve : the art of unselfish living (Trawas) .
London:
Word Publishing.
Gaya MLA
Swindoll, Charles, R..
"Improving Your Serve : the art of unselfish living (Trawas)".
London:
Word Publishing,
1966.
Text.