Gaya APA
A teacher's guide to the learning process. ([s.a.]).
[s.l.]:
[s.n.].
Gaya Chicago
A teacher's guide to the learning process.
.
[s.l.]:
[s.n.],
[s.a.].
Text.
Gaya MLA
A teacher's guide to the learning process.
.
[s.l.]:
[s.n.],
[s.a.].
Text.
Gaya Turabian
A teacher's guide to the learning process.
[s.l.]:
[s.n.],
[s.a.].
Print.