Gaya APA
Fey, J, T. (1992).
Long, Short, High, Low, Thin, Wide: Times. Foundation. Mathematics .
Singapore:
Earlybird Books.
Gaya MLA
Fey, James, T..
"Long, Short, High, Low, Thin, Wide: Times. Foundation. Mathematics".
Singapore:
Earlybird Books,
1992.
Text.