Gaya APA
Heppell, M.
(2012).
How to Save An Hour Everyday. ( buku baru 2015 )
.
Jakarta:
PT.Elex Media Komputindo.
Gaya MLA
Heppell, Michael.
"How to Save An Hour Everyday. ( buku baru 2015 )".
Jakarta:
PT.Elex Media Komputindo,
2012.
Text.