Gaya APA
16, G, E, O, K, V. (1993).
Grolier encyclopedia of knowledge Vol. 16 / Grolier Incorporated .
:
.
Gaya MLA
16, Grolier, Encyclopedia, Of, Knowledge, Vol..
"Grolier encyclopedia of knowledge Vol. 16 / Grolier Incorporated".
:
,
1993.
Referensi.