Gaya APA
Teaching Elementary School Mathematics for Understanding. (1958).
USA:
Mc Graw-hill book company.
Gaya Chicago
Teaching Elementary School Mathematics for Understanding.
ed.4.
USA:
Mc Graw-hill book company,
1958.
.
Gaya MLA
Teaching Elementary School Mathematics for Understanding.
ed.4.
USA:
Mc Graw-hill book company,
1958.
.
Gaya Turabian
Teaching Elementary School Mathematics for Understanding.
USA:
Mc Graw-hill book company,
1958.
.