Gaya APA
Understending your health. ([s.a.]).
[s.l.]:
[s.n.].
Gaya Chicago
Understending your health.
.
[s.l.]:
[s.n.],
[s.a.].
Text.
Gaya MLA
Understending your health.
.
[s.l.]:
[s.n.],
[s.a.].
Text.
Gaya Turabian
Understending your health.
[s.l.]:
[s.n.],
[s.a.].
Print.