Penggayaan APA
GROLIER encyclopedia of knowledge, volume 20 :. ([s.a]).
Danbury, Connecticut:
Grolier.
Chicago Style
GROLIER encyclopedia of knowledge, volume 20 :.
.
Danbury, Connecticut:
Grolier,
[s.a].
Buku.
MLA Style
GROLIER encyclopedia of knowledge, volume 20 :.
.
Danbury, Connecticut:
Grolier,
[s.a].
Buku.
Turabian Style
GROLIER encyclopedia of knowledge, volume 20 :.
Danbury, Connecticut:
Grolier,
[s.a].
Buku.