APA Style
Frank, Christine. (1982).
Challenge to think (_).
:
Oxford university.
Chicago Style
Frank, Christine.
Challenge to think.
_
:
Oxford university,
1982.
.
MLA Style
Frank, Christine.
Challenge to think.
_
:
Oxford university,
1982.
.
Turabian Style
Frank, Christine.
Challenge to think.
_
:
Oxford university,
1982.
.