Gaya APA
Grolier encyylopedia of knowlwdge Vol.20 : Grolier Incorporated. (1993).
Danbury:
Grolier incorporated.
Gaya Chicago
Grolier encyylopedia of knowlwdge Vol.20 : Grolier Incorporated.
.
Danbury:
Grolier incorporated,
1993.
Textbook.
Gaya MLA
Grolier encyylopedia of knowlwdge Vol.20 : Grolier Incorporated.
.
Danbury:
Grolier incorporated,
1993.
Textbook.
Gaya Turabian
Grolier encyylopedia of knowlwdge Vol.20 : Grolier Incorporated.
Danbury:
Grolier incorporated,
1993.
Textbook.