Penggayaan APA
GORDON, Alexander. (2009).
The necessary but impossible task : .
[S.l].: :
[s.n.].
Chicago Style
GORDON, Alexander.
The necessary but impossible task :.
[S.l].: :
[s.n.],
2009.
Buku.
MLA Style
GORDON, Alexander.
The necessary but impossible task :.
[S.l].: :
[s.n.],
2009.
Buku.
Turabian Style
GORDON, Alexander.
The necessary but impossible task :.
[S.l].: :
[s.n.],
2009.
Buku.