Gaya APA
Skills for life. (1997).
Montreal-Canada:
[s.n.].
Gaya Chicago
Skills for life.
Ed. 5.
Montreal-Canada:
[s.n.],
1997.
Text.
Gaya MLA
Skills for life.
Ed. 5.
Montreal-Canada:
[s.n.],
1997.
Text.
Gaya Turabian
Skills for life.
Montreal-Canada:
[s.n.],
1997.
Print.