Gaya APA
Hiraku, T. (1991).
Larger Numbers (100 to 1000) : A Child's First Mathematics Program (8) (cet.1).
:
Time life books.
Gaya MLA
Hiraku, Toyama.
"Larger Numbers (100 to 1000) : A Child's First Mathematics Program (8)".
cet.1
:
Time life books,
1991.
Text.