APA Style
Peale, N, V. (1997).
Treasury of Joy And Enthusiasm (Khasanah Sukacita Dan Semangat Hidup .
Jakarta:
Professional Books.
MLA Style
Peale, Norman, Vincent.
"Treasury of Joy And Enthusiasm (Khasanah Sukacita Dan Semangat Hidup".
Jakarta:
Professional Books,
1997.
Text.