Gaya APA
Kelly, John R.. (Prentice Hall).
Leisure .
Englewood Cliffs, NJ:
.
Gaya Chicago
Kelly, John R..
Leisure.
Englewood Cliffs, NJ:
,
Prentice Hall.
Text.
Gaya MLA
Kelly, John R..
Leisure.
Englewood Cliffs, NJ:
,
Prentice Hall.
Text.
Gaya Turabian
Kelly, John R..
Leisure.
Englewood Cliffs, NJ:
,
Prentice Hall.
Print.