Gaya APA
Halvorson, Heidi Grant. (2012).
9 Things succesful people do differenly .
Amerika:
Harvard Busines Review Press.
Gaya Chicago
Halvorson, Heidi Grant.
9 Things succesful people do differenly.
Amerika:
Harvard Busines Review Press,
2012.
Text.
Gaya MLA
Halvorson, Heidi Grant.
9 Things succesful people do differenly.
Amerika:
Harvard Busines Review Press,
2012.
Text.
Gaya Turabian
Halvorson, Heidi Grant.
9 Things succesful people do differenly.
Amerika:
Harvard Busines Review Press,
2012.
Print.