Gaya APA
Patterns in action. (1985).
Canada:
Little, brown and company.
Gaya Chicago
Patterns in action.
.
Canada:
Little, brown and company,
1985.
.
Gaya MLA
Patterns in action.
.
Canada:
Little, brown and company,
1985.
.
Gaya Turabian
Patterns in action.
Canada:
Little, brown and company,
1985.
.