Gaya APA
Biech, Elaine. (2007).
90 World Class activities by 90 world class trainers .
Amerika:
WileyPublishing.
Gaya Chicago
Biech, Elaine.
90 World Class activities by 90 world class trainers.
Amerika:
WileyPublishing,
2007.
Buku.
Gaya MLA
Biech, Elaine.
90 World Class activities by 90 world class trainers.
Amerika:
WileyPublishing,
2007.
Buku.
Gaya Turabian
Biech, Elaine.
90 World Class activities by 90 world class trainers.
Amerika:
WileyPublishing,
2007.
Buku.