Gaya APA
FRANK, Lester K.. (1995).
Journal for research in mathematics education .
[sl]:
[SN].
Gaya Chicago
FRANK, Lester K..
Journal for research in mathematics education.
[sl]:
[SN],
1995.
Text.
Gaya MLA
FRANK, Lester K..
Journal for research in mathematics education.
[sl]:
[SN],
1995.
Text.
Gaya Turabian
FRANK, Lester K..
Journal for research in mathematics education.
[sl]:
[SN],
1995.
Print.