Gaya APA
Understanding Aritmetic. (1963).
:
United States Of America.
Gaya Chicago
Understanding Aritmetic.
.
:
United States Of America,
1963.
.
Gaya MLA
Understanding Aritmetic.
.
:
United States Of America,
1963.
.
Gaya Turabian
Understanding Aritmetic.
:
United States Of America,
1963.
.